用javascript做一个计算器？？

helei33 2002-04-14 07:36:02
加精
那位仁兄用javascript写过计算器，
包括（、）的运算，帮帮忙！！
...全文
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weidegong 2002-04-14
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贴个简单的
<html>

<head>
<meta http-equiv="Content-Type"
content="text/html; charset=gb_2312-80">
<meta name="GENERATOR" content="Microsoft FrontPage Express 2.0">
<title>JAVA计算器</title>
<style type="text/css">
<!--
td { font: 9pt "宋体"; color: #FFFFFF}
.Button { font: 9pt "宋体"; color: #FFFFFF; background: #brown; margin: 4px 4px; width: 40px; height: 20px; border-color: #CCCCCC #333333 #333333 #CCCCCC; border-top-width: 2px; border-right-width: 2px; border-bottom-width: 2px; border-left-width: 2px}
.text_input { font: 9pt "Verdana", "Arial", "Helvetica", "sans-serif"; color: #000000; background: #CCCCCC; text-align: right}
a { font: 9pt "宋体"; color: #FFFFFF}
-->
</style>
</head>

<body bgcolor="#CCCC99" topmargin="0" leftmargin="1"
marginwidth="1" marginheight="1">
<form name="Keypad">
<div align="center">
<center>
<br>
<table border="1" cellpadding="0"
cellspacing="1" width="249" bgcolor="#B5B56A"
bordercolor="#D0CC98" height="60">
<tr>
<td align="middle" colspan="4"><input type="text"
size="25" name="ReadOut" value="0" width="100%"
class="text_input"></td>
<td width="0"><input type="button" name="btnClear"
value=" C " onclick="Clear()" class="Button"></td>
<td width="50"><input type="button"
name="btnClearEntry2" value=" CE "
onclick="ClearEntry()" class="Button"></td>
</tr>
<tr>
<td align="center" width="50"><input type="button"
name="btnSeven" value=" 7 " onclick="NumPressed(7)"
class="Button"></td>
<td align="center" width="50"><input type="button"
name="btnEight" value=" 8 " onclick="NumPressed(8)"
class="Button"></td>
<td align="center" width="50"><input type="button"
name="btnNine" value=" 9 " onclick="NumPressed(9)"
class="Button"></td>
<th width="50"><p align="left"><input type="button"
name="btnHex" value="HEX" onclick="hexchange()"
class="Button"></p>
</th>
<td align="center" width="0"><input type="button"
name="btnClearEntry222" value="OCT"
onclick="octchange()" class="Button"></td>
<td align="center" width="50"><input type="button"
name="btnClearEntry223" value="BIN"
onclick="binchange()" class="Button"></td>
</tr>
<tr>
<td width="50"><input type="button" name="btnFour"
value=" 4 " onclick="NumPressed(4)" class="Button"></td>
<td width="50"><input type="button" name="btnFive"
value=" 5 " onclick="NumPressed(5)" class="Button"></td>
<td width="50"><input type="button" name="btnSix"
value=" 6 " onclick="NumPressed(6)" class="Button"></td>
<td width="50"><input type="button" name="btnPlus"
value=" + " onclick="Operation('+')" class="Button"></td>
<td width="0"><input type="button" name="btnNeg"
value=" +/- " onclick="Neg()" class="Button"></td>
<td width="50"><input type="button" name="btnPercent"
value=" % " onclick="Percent()" class="Button"></td>
</tr>
<tr>
<td width="50"><input type="button" name="btnOne"
value=" 1 " onclick="NumPressed(1)" class="Button"></td>
<td width="50"><input type="button" name="btnTwo"
value=" 2 " onclick="NumPressed(2)" class="Button"></td>
<td width="50"><input type="button" name="btnThree"
value=" 3 " onclick="NumPressed(3)" class="Button"></td>
<td width="50"><input type="button" name="btnMinus"
value=" - " onclick="Operation('-')"
class="Button"></td>
<td width="0"><input type="button" name="btnMultiply"
value=" * " onclick="Operation('*')" class="Button"></td>
<td width="50"><input type="button" name="btnDivide"
value=" / " onclick="Operation('/')"
class="Button"></td>
</tr>
<tr>
<td width="50"><input type="button" name="btnZero"
value=" 0 " onclick="NumPressed(0)" class="Button"></td>
<td width="50"><input type="button" name="btnDecimal"
value=" . " onclick="Decimal()" class="Button"></td>
<td width="50"><input type="button" name="btnEquals"
value=" = " onclick="Operation('=')" class="Button"></td>
<td width="50">　</td>
<td width="0">　</td>
<td width="50">　</td>
</tr>
</table>
</center></div>
</form>
<script language="JavaScript">
var FKeyPad = document.Keypad;
var Accum = 0;
var FlagNewNum = false;
var PendingOp = "";
function NumPressed (Num) {
if (FlagNewNum) {
FKeyPad.ReadOut.value = Num;
FlagNewNum = false;
}
else {
if (FKeyPad.ReadOut.value == "0")
FKeyPad.ReadOut.value = Num;
else
FKeyPad.ReadOut.value += Num;
}
}
function Operation (Op) {
var Readout = FKeyPad.ReadOut.value;
if (FlagNewNum && PendingOp != "=");
else
{
FlagNewNum = true;
if ( '+' == PendingOp )
Accum += parseFloat(Readout);
else if ( '-' == PendingOp )
Accum -= parseFloat(Readout);
else if ( '/' == PendingOp )
Accum /= parseFloat(Readout);
else if ( '*' == PendingOp )
Accum *= parseFloat(Readout);
else
Accum = parseFloat(Readout);
FKeyPad.ReadOut.value = Accum;
PendingOp = Op;
}
}
function Decimal () {
var curReadOut = FKeyPad.ReadOut.value;
if (FlagNewNum) {
curReadOut = "0.";
FlagNewNum = false;
}
else
{
if (curReadOut.indexOf(".") == -1)
curReadOut += ".";
}
FKeyPad.ReadOut.value = curReadOut;
}
function ClearEntry () {
FKeyPad.ReadOut.value = "0";
FlagNewNum = true;
}
function Clear () {
Accum = 0;
PendingOp = "";
ClearEntry();
}
function Neg () {
FKeyPad.ReadOut.value = parseFloat(FKeyPad.ReadOut.value) * -1;
}
function Percent () {
FKeyPad.ReadOut.value = (parseFloat(FKeyPad.ReadOut.value) / 100) * parseFloat(Accum);
}
function hexchange()
{
var hex,dec;
dec = parseFloat(FKeyPad.ReadOut.value);
hex = dec.toString(16);
window.alert("该十进制数转成十六进制数为："+ hex);
}
function octchange()
{
var oct,dec;
dec = parseFloat(FKeyPad.ReadOut.value);
oct = dec.toString(8);
window.alert("该十进制数转成八进制数为："+ oct);
}
function binchange()
{
var bin,dec;
dec = parseFloat(FKeyPad.ReadOut.value);
bin = dec.toString(2);
window.alert("该十进制数转成二进制数为："+ bin);
}
</script>
</body>
</html>
weidegong 2002-04-14
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呵呵，一样的东西呀
emu 2002-04-14
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算了，我把它上传掉得了。

http://go2.163.com/stonelf/jisuan.htm
emu 2002-04-14
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糟糕，几个人和回复夹到一起了呵呵。
emu 2002-04-14
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快有一千行了呵呵。这个网站竟然不让我发这么长的帖子，分了多少次才让我给贴了上来。
setcdq9801的专栏 2002-04-14
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或者是
http://www.yaguo.com/~dq9801/zhiyuan/Calcu1.htm
setcdq9801的专栏 2002-04-14
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<td>
<input type="button" value="1/x "
onClick="inputfunction('recip','recip')" style="color=#ff00ff">
</td>
</tr>
</table>
</td>
<td width=30>
</td>
<td>
<table>
<tr>
<td>
<input type="button" value=" 储存 "
onClick="putmemory()" style="color=red">
</td>
</tr>
<td>
<input type="button" value=" 取存 "
onClick="getmemory()" style="color=red">
</td>
</tr>
<tr>
<td>
<input type="button" value=" 累存 "
onClick="addmemory()" style="color=red">
</td>
</tr>
<tr>
<td>
<input type="button" value=" 积存 "
onClick="multimemory()" style="color=red">
</td>
</tr>
<tr>
<td height="33">
<input type="button" value=" 清存 "
onClick="clearmemory()" style="color=red">
</td>
</tr>
</table>
</td>
<td width=30>
</td>
<td>
<table>
<tr align=center>
<td>
<input name=k7 type="button" value=" 7 "
onClick="inputkey('7')" style="color=blue">
</td>

<td>
<input name=k8 type="button" value=" 8 "
onClick="inputkey('8')" style="color=blue">
</td>

<td>
<input name=k9 type="button" value=" 9 "
onClick="inputkey('9')" style="color=blue">
</td>

<td>
<input type="button" value=" / "
onClick="operation('/',6)" style="color=red">
</td>

<td>
<input type="button" value="取余"
onClick="operation('%',6)" style="color=red">
</td>

<td>
<input type="button" value=" 与 "
onClick="operation('&',3)" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input name=k4 type="button" value=" 4 "
onClick="inputkey('4')" style="color=blue">
</td>

<td>
<input name=k5 type="button" value=" 5 "
onClick="inputkey('5')" style="color=blue">
</td>

<td>
<input name=k6 type="button" value=" 6 "
onClick="inputkey('6')" style="color=blue">
</td>

<td>
<input type="button" value=" * "
onClick="operation('*',6)" style="color=red">
</td>

<td>
<input name=floor type="button" value="取整"
onClick="inputfunction('floor','deci')" style="color=red">
</td>

<td>
<input type="button" value=" 或 "
onClick="operation('|',1)" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input type="button" value=" 1 "
onClick="inputkey('1')" style="color=blue">
</td>

<td>
<input name=k2 type="button" value=" 2 "
onClick="inputkey('2')" style="color=blue">
</td>

<td>
<input name=k3 type="button" value=" 3 "
onClick="inputkey('3')" style="color=blue">
</td>

<td>
<input type="button" value=" - "
onClick="operation('-',5)" style="color=red">
</td>

<td>
<input type="button" value="左移"
onClick="operation('<',4)" style="color=red">
</td>

<td>
<input type="button" value=" 非 "
onClick="inputfunction('~','~')" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input type="button" value=" 0 "
onClick="inputkey('0')" style="color=blue">
</td>

<td>
<input type="button" value="+/-"
onClick="changeSign()" style="color=blue">
</td>

<td>
<input name=kp type="button" value=" . "
onClick="inputkey('.')" style="color=blue">
</td>

<td>
<input type="button" value=" + "
onClick="operation('+',5)" style="color=red">
</td>

<td>
<input type="button" value=" ＝ "
onClick="result()" style="color=red">
</td>

<td>
<input type="button" value="异或"
onClick="operation('x',2)" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input name=ka type="button" value=" A "
onClick="inputkey('a')" style="color=blue" disabled=true>
</td>

<td>
<input name=kb type="button" value=" B "
onClick="inputkey('b')" style="color=blue" disabled=true>
</td>

<td>
<input name=kc type="button" value=" C "
onClick="inputkey('c')" style="color=blue" disabled=true>
</td>

<td>
<input name=kd type="button" value=" D "
onClick="inputkey('d')" style="color=blue" disabled=true>
</td>

<td>
<input name=ke type="button" value=" E"
onClick="inputkey('e')" style="color=blue" disabled=true>
</td>

<td>
<input name=kf type="button" value=" F"
onClick="inputkey('f')" style="color=blue" disabled=true>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</div>

<p align="center">
<a href="../index.htm">回到首页</a></p>

</body>
</html>
setcdq9801的专栏 2002-04-14
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//界面

//-->
</script>
</head>
<!--written by GoldHuman li hai-->
<!--2000.8-->
<body>

<p align="right">
<br>
<SCRIPT LANGUAGE="JavaScript" src="pclock.js"></script>

<div align="center">
<form name=calc>
<table border="1" width="500" height="250">
<tr>
<td height=50>
<table width=500>
<td>  </td>
<td>
<div align=center>
<input type=text name="display" value="0" readonly size="40">
</div>
</td>
</table>
</td>
</tr>
<tr>
<td>
<table width=500>
<tr>
<td width=290>
<input type=radio name="carry" onClick="inputChangCarry(16)">
十六进制
<input type=radio name="carry" checked onClick="inputChangCarry(10)">
十进制
<input type=radio name="carry" onClick="inputChangCarry(8)">
八进制
<input type=radio name="carry" onClick="inputChangCarry(2)">
二进制
</td>
<td>
</td>
<td width=135>
<input type=radio name="angle" value="d" onClick="inputChangAngle('d')" checked>
角度制
<input type=radio name="angle" value="r" onClick="inputChangAngle('r')">
弧度制
</td>
</tr>
</table>
<table width=500>
<tr>
<td width=170>
<input name="shiftf" type="checkbox" onclick="inputshift()">上档功能
<input name="hypf" type="checkbox" onclick="inputshift()">双曲函数
</td>
<td>
<input name="bracket" value="" type=text size=3 readonly style="background-color=lightgrey">
<input name="memory" value="" type=text size=3 readonly style="background-color=lightgrey">
<input name="operator" value="" type=text size=3 readonly style="background-color=lightgrey">
</td>
<td width=183>
<input type="button" value=" 退格 "
onclick="backspace()" style="color=red">
<input type="button" value=" 清屏 "
onClick="document.calc.display.value = 0 " style="color=red">
<input type="button" value=" 全清"
onClick="clearall()" style="color=red">
</td>
</tr>
</table>

<table width=500>
<tr>
<td>
<table>
<tr align=center>
<td>
<input name=pi type="button" value=" PI "
onClick="inputfunction('pi','pi')" style="color=blue">
</td>

<td>
<input name=e type="button" value=" E "
onClick="inputfunction('e','e')" style="color=blue">
</td>

<td>
<input name=bt type="button" value="d.ms"
onClick="inputfunction('dms','deg')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input type="button" value=" ( "
onClick="addbracket()" style="color=#ff00ff">
</td>

<td>
<input type="button" value=" ) "
onClick="disbracket()" style="color=#ff00ff">
</td>

<td>
<input name=ln type="button" value=" ln "
onClick="inputfunction('ln','exp')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=sin type="button" value="sin "
onClick="inputtrig('sin','arcsin','hypsin','ahypsin')" style="color=#ff00ff">
</td>

<td>
<input type="button" value="x^y "
onClick="operation('^',7)" style="color=#ff00ff">
</td>

<td>
<input name=log type="button" value="log "
onClick="inputfunction('log','expdec')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=cos type="button" value="cos "
onClick="inputtrig('cos','arccos','hypcos','ahypcos')" style="color=#ff00ff">
</td>

<td>
<input name=cube type="button" value="x^3 "
onClick="inputfunction('cube','cubt')" style="color=#ff00ff">
</td>

<td>
<input type="button" value=" n! "
onClick="inputfunction('!','!')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=tan type="button" value="tan "
onClick="inputtrig('tan','arctan','hyptan','ahyptan')" style="color=#ff00ff">
</td>
<td>
<input name=sqr type="button" value="x^2 "
onClick="inputfunction('sqr','sqrt')" style="color=#ff00ff">
</td>

emu 2002-04-14
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<td>
<input name=k8 type="button" value=" 8 "
onClick="inputkey('8')" style="color=blue">
</td>

<td>
<input name=k9 type="button" value=" 9 "
onClick="inputkey('9')" style="color=blue">
</td>

<td>
<input type="button" value=" / "
onClick="operation('/',6)" style="color=red">
</td>

<td>
<input type="button" value="取余"
onClick="operation('%',6)" style="color=red">
</td>

<td>
<input type="button" value=" 与 "
onClick="operation('&',3)" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input name=k4 type="button" value=" 4 "
onClick="inputkey('4')" style="color=blue">
</td>

<td>
<input name=k5 type="button" value=" 5 "
onClick="inputkey('5')" style="color=blue">
</td>

<td>
<input name=k6 type="button" value=" 6 "
onClick="inputkey('6')" style="color=blue">
</td>

<td>
<input type="button" value=" * "
onClick="operation('*',6)" style="color=red">
</td>

<td>
<input name=floor type="button" value="取整"
onClick="inputfunction('floor','deci')" style="color=red">
</td>

<td>
<input type="button" value=" 或 "
onClick="operation('|',1)" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input type="button" value=" 1 "
onClick="inputkey('1')" style="color=blue">
</td>

<td>
<input name=k2 type="button" value=" 2 "
onClick="inputkey('2')" style="color=blue">
</td>

<td>
<input name=k3 type="button" value=" 3 "
onClick="inputkey('3')" style="color=blue">
</td>

<td>
<input type="button" value=" - "
onClick="operation('-',5)" style="color=red">
</td>

<td>
<input type="button" value="左移"
onClick="operation('<',4)" style="color=red">
</td>

<td>
<input type="button" value=" 非 "
onClick="inputfunction('~','~')" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input type="button" value=" 0 "
onClick="inputkey('0')" style="color=blue">
</td>

<td>
<input type="button" value="+/-"
onClick="changeSign()" style="color=blue">
</td>

<td>
<input name=kp type="button" value=" . "
onClick="inputkey('.')" style="color=blue">
</td>

<td>
<input type="button" value=" + "
onClick="operation('+',5)" style="color=red">
</td>

<td>
<input type="button" value=" ＝ "
onClick="result()" style="color=red">
</td>

<td>
<input type="button" value="异或"
onClick="operation('x',2)" style="color=red">
</td>
</tr>

<tr align=center>
<td>
<input name=ka type="button" value=" A "
onClick="inputkey('a')" style="color=blue" disabled=true>
</td>

<td>
<input name=kb type="button" value=" B "
onClick="inputkey('b')" style="color=blue" disabled=true>
</td>

<td>
<input name=kc type="button" value=" C "
onClick="inputkey('c')" style="color=blue" disabled=true>
</td>

<td>
<input name=kd type="button" value=" D "
onClick="inputkey('d')" style="color=blue" disabled=true>
</td>

<td>
<input name=ke type="button" value=" E"
onClick="inputkey('e')" style="color=blue" disabled=true>
</td>

<td>
<input name=kf type="button" value=" F"
onClick="inputkey('f')" style="color=blue" disabled=true>
</td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</div>
</body>
</html>
setcdq9801的专栏 2002-04-14
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//表达式解析

function parse(string)
{
if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/))
return(RegExp.$1+cypher(RegExp.$2,RegExp.$3,RegExp.$4))
else
return(string)
}

//数学运算和位运算

function cypher(left,join,right)
{
left=todec(left,carry)
right=todec(right,carry)
if (join=="+")
return(decto(parseFloat(left)+parseFloat(right),carry))
if (join=="-")
return(decto(left-right,carry))
if (join=="*")
return(decto(left*right,carry))
if (join=="/" && right!=0)
return(decto(left/right,carry))
if (join=="%")
return(decto(left%right,carry))
if (join=="&")
return(decto(left&right,carry))
if (join=="|")
return(decto(left|right,carry))
if (join=="^")
return(decto(Math.pow(left,right),carry))
if (join=="x")
return(decto(left^right,carry))
if (join=="<")
return(decto(left<<right,carry))
alert("除数不能为零")
return(left)
}

//函数计算

function funcalc(fun,num)
{
with(Math)
{
if (fun=="pi")
return(PI)
if (fun=="e")
return(E)

if (fun=="abs")
return(abs(num))
if (fun=="ceil")
return(ceil(num))
if (fun=="round")
return(round(num))

if (fun=="floor")
return(floor(num))
if (fun=="deci")
return(num-floor(num))


if (fun=="ln" && num>0)
return(log(num))
if (fun=="exp")
return(exp(num))
if (fun=="log" && num>0)
return(log(num)*LOG10E)
if (fun=="expdec")
return(pow(10,num))


if (fun=="cube")
return(num*num*num)
if (fun=="cubt")
return(pow(num,1/3))
if (fun=="sqr")
return(num*num)
if (fun=="sqrt" && num>=0)
return(sqrt(num))

if (fun=="!")
return(factorial(num))

if (fun=="recip" && num!=0)
return(1/num)

if (fun=="dms")
return(dms(num))
if (fun=="deg")
return(deg(num))

if (fun=="~")
return(~num)

if (angle=="d")
{
if (fun=="sin")
return(sin(degressToRadians(num)))
if (fun=="cos")
return(cos(degressToRadians(num)))
if (fun=="tan")
return(tan(degressToRadians(num)))

if (fun=="arcsin" && abs(num)<=1)
return(radiansToDegress(asin(num)))
if (fun=="arccos" && abs(num)<=1)
return(radiansToDegress(acos(num)))
if (fun=="arctan")
return(radiansToDegress(atan(num)))
}
else
{
if (fun=="sin")
return(sin(num))
if (fun=="cos")
return(cos(num))
if (fun=="tan")
return(tan(num))

if (fun=="arcsin" && abs(num)<=1)
return(asin(num))
if (fun=="arccos" && abs(num)<=1)
return(acos(num))
if (fun=="arctan")
return(atan(num))
}

if (fun=="hypsin")
return((exp(num)-exp(0-num))*0.5)
if (fun=="hypcos")
return((exp(num)+exp(-num))*0.5)
if (fun=="hyptan")
return((exp(num)-exp(-num))/(exp(num)+exp(-num)))

if (fun=="ahypsin" | fun=="hypcos" | fun=="hyptan")
{
alert("对不起,公式还没有查到!")
return(num)
}

alert("超出函数定义范围")
return(num)
}
}

function factorial(n)
{
n=Math.abs(parseInt(n))
var fac=1
for (;n>0;n-=1)
fac*=n
return(fac)
}

function dms(n)
{
var neg=(n<0)
with(Math)
{
n=abs(n)
var d=floor(n)
var m=floor(60*(n-d))
var s=(n-d)*60-m
}
var dms=d+m/100+s*0.006
if (neg)
dms=-dms
return(dms)
}

function deg(n)
{
var neg=(n<0)
with(Math)
{
n=abs(n)
var d=floor(n)
var m=floor((n-d)*100)
var s=(n-d)*100-m
}
var deg=d+m/60+s/36
if (neg)
deg=-deg
return(deg)
}

function degressToRadians(degress)
{
return(degress*Math.PI/180)
}

function radiansToDegress(radians)
{
return(radians*180/Math.PI)
}

emu 2002-04-14
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<body onKeyDown="keypress()">
<div align="center">
<form name=calc>
<table border="1" width="500" height="250">
<tr>
<td height=50>
<table width=500>
<td width="133">
</td>
<td width="353">
<div align=center>
<input type=text name="display" value="0" readonly size="40">
</div>
</td>
</table>
</td>
</tr>
<tr>
<td>
<table width=500>
<tr>
<td width=290>
<input type=radio name="carry" onClick="inputChangCarry(16)">
十六进制
<input type=radio name="carry" checked onClick="inputChangCarry(10)">
十进制
<input type=radio name="carry" onClick="inputChangCarry(8)">
八进制
<input type=radio name="carry" onClick="inputChangCarry(2)">
二进制
</td>
<td>
</td>
<td width=135>
<input type=radio name="angle" value="d" onClick="inputChangAngle('d')" checked>
角度制
<input type=radio name="angle" value="r" onClick="inputChangAngle('r')">
弧度制
</td>
</tr>
</table>
<table width=500>
<tr>
<td width=170>
<input name="shiftf" type="checkbox" onclick="inputshift()">上档功能
<input name="hypf" type="checkbox" onclick="inputshift()">双曲函数
</td>
<td>
<input name="bracket" value="" type=text size=3 readonly style="background-color=lightgrey">
<input name="memory" value="" type=text size=3 readonly style="background-color=lightgrey">
<input name="operator" value="" type=text size=3 readonly style="background-color=lightgrey">
</td>
<td width=183>
<input type="button" value=" 退格 "
onclick="backspace()" style="color=red">
<input type="button" value=" 清屏 "
onClick="document.calc.display.value = 0 " style="color=red">
<input type="button" value=" 全清"
onClick="clearall()" style="color=red">
</td>
</tr>
</table>

<table width=500>
<tr>
<td>
<table>
<tr align=center>
<td>
<input name=pi type="button" value=" PI "
onClick="inputfunction('pi','pi')" style="color=blue">
</td>

<td>
<input name=e type="button" value=" E "
onClick="inputfunction('e','e')" style="color=blue">
</td>

<td>
<input name=bt type="button" value="d.ms"
onClick="inputfunction('dms','deg')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input type="button" value=" ( "
onClick="addbracket()" style="color=#ff00ff">
</td>

<td>
<input type="button" value=" ) "
onClick="disbracket()" style="color=#ff00ff">
</td>

<td>
<input name=ln type="button" value=" ln "
onClick="inputfunction('ln','exp')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=sin type="button" value="sin "
onClick="inputtrig('sin','arcsin','hypsin','ahypsin')" style="color=#ff00ff">
</td>

<td>
<input type="button" value="x^y "
onClick="operation('^',7)" style="color=#ff00ff">
</td>

<td>
<input name=log type="button" value="log "
onClick="inputfunction('log','expdec')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=cos type="button" value="cos "
onClick="inputtrig('cos','arccos','hypcos','ahypcos')" style="color=#ff00ff">
</td>

<td>
<input name=cube type="button" value="x^3 "
onClick="inputfunction('cube','cubt')" style="color=#ff00ff">
</td>

<td>
<input type="button" value=" n! "
onClick="inputfunction('!','!')" style="color=#ff00ff">
</td>
</tr>
<tr align=center>
<td>
<input name=tan type="button" value="tan "
onClick="inputtrig('tan','arctan','hyptan','ahyptan')" style="color=#ff00ff">
</td>

<td>
<input name=sqr type="button" value="x^2 "
onClick="inputfunction('sqr','sqrt')" style="color=#ff00ff">
</td>

<td>
<input type="button" value="1/x "
onClick="inputfunction('recip','recip')" style="color=#ff00ff">
</td>
</tr>
</table>
</td>
<td width=30>
</td>
<td>
<table>
<tr>
<td>
<input type="button" value=" 储存 "
onClick="putmemory()" style="color=red">
</td>
</tr>
<td>
<input type="button" value=" 取存 "
onClick="getmemory()" style="color=red">
</td>
</tr>
<tr>
<td>
<input type="button" value=" 累存 "
onClick="addmemory()" style="color=red">
</td>
</tr>
<tr>
<td>
<input type="button" value=" 积存 "
onClick="multimemory()" style="color=red">
</td>
</tr>
<tr>
<td height="33">
<input type="button" value=" 清存 "
onClick="clearmemory()" style="color=red">
</td>
</tr>
</table>
</td>
<td width=30>
</td>
<td>
<table>
<tr align=center>
<td>
<input name=k7 type="button" value=" 7 "
onClick="inputkey('7')" style="color=blue">
</td>
setcdq9801的专栏 2002-04-14
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//等号

function result()
{
endNumber=true
while (layer>0)
disbracket()
var temp=stack+document.calc.display.value
while ((level.charAt(level.length-1))>0)
{
temp=parse(temp)
level=level.slice(0,-1)
}

document.calc.display.value=temp
document.calc.bracket.value=""
document.calc.operator.value=""
stack=""
level="0"
}


//修改键

function backspace()
{
if (!endNumber)
{
if(document.calc.display.value.length>1)
document.calc.display.value=document.calc.display.value.substring(0,document.calc.display.value.length - 1)
else
document.calc.display.value=0
}
}

function clearall()
{
document.calc.display.value=0
endNumber=true
stack=""
level="0"
layer=""
document.calc.operator.value=""
document.calc.bracket.value=""
}


//转换键

function inputChangCarry(newcarry)
{
endNumber=true
document.calc.display.value=(decto(todec(document.calc.display.value,carry),newcarry))
carry=newcarry

document.calc.sin.disabled=(carry!=10)
document.calc.cos.disabled=(carry!=10)
document.calc.tan.disabled=(carry!=10)
document.calc.bt.disabled=(carry!=10)
document.calc.pi.disabled=(carry!=10)
document.calc.e.disabled=(carry!=10)
document.calc.kp.disabled=(carry!=10)

document.calc.k2.disabled=(carry<=2)
document.calc.k3.disabled=(carry<=2)
document.calc.k4.disabled=(carry<=2)
document.calc.k5.disabled=(carry<=2)
document.calc.k6.disabled=(carry<=2)
document.calc.k7.disabled=(carry<=2)
document.calc.k8.disabled=(carry<=8)
document.calc.k9.disabled=(carry<=8)
document.calc.ka.disabled=(carry<=10)
document.calc.kb.disabled=(carry<=10)
document.calc.kc.disabled=(carry<=10)
document.calc.kd.disabled=(carry<=10)
document.calc.ke.disabled=(carry<=10)
document.calc.kf.disabled=(carry<=10)



}

function inputChangAngle(angletype)
{
endNumber=true
angle=angletype
if (angle=="d")
document.calc.display.value=radiansToDegress(document.calc.display.value)
else
document.calc.display.value=degressToRadians(document.calc.display.value)
endNumber=true
}

function inputshift()
{
if (document.calc.shiftf.checked)
{
document.calc.bt.value="deg "
document.calc.ln.value="exp "
document.calc.log.value="expd"

if (document.calc.hypf.checked)
{
document.calc.sin.value="ahs "
document.calc.cos.value="ahc "
document.calc.tan.value="aht "
}
else
{
document.calc.sin.value="asin"
document.calc.cos.value="acos"
document.calc.tan.value="atan"
}

document.calc.sqr.value="x^.5"
document.calc.cube.value="x^.3"

document.calc.floor.value="小数"
}
else
{
document.calc.bt.value="d.ms"
document.calc.ln.value=" ln "
document.calc.log.value="log "

if (document.calc.hypf.checked)
{
document.calc.sin.value="hsin"
document.calc.cos.value="hcos"
document.calc.tan.value="htan"
}
else
{
document.calc.sin.value="sin "
document.calc.cos.value="cos "
document.calc.tan.value="tan "
}

document.calc.sqr.value="x^2 "
document.calc.cube.value="x^3 "

document.calc.floor.value="取整"
}

}
//存储器部分

function clearmemory()
{
mem=0
document.calc.memory.value=" "
}

function getmemory()
{
endNumber=true
document.calc.display.value=decto(mem,carry)
}

function putmemory()
{
endNumber=true
if (document.calc.display.value!=0)
{
mem=todec(document.calc.display.value,carry)
document.calc.memory.value=" M "
}
else
document.calc.memory.value=" "
}

function addmemory()
{
endNumber=true
mem=parseFloat(mem)+parseFloat(todec(document.calc.display.value,carry))
if (mem==0)
document.calc.memory.value=" "
else
document.calc.memory.value=" M "
}

function multimemory()
{
endNumber=true
mem=parseFloat(mem)*parseFloat(todec(document.calc.display.value,carry))
if (mem==0)
document.calc.memory.value=" "
else
document.calc.memory.value=" M "
}

//十进制转换

function todec(num,oldcarry)
{
if (oldcarry==10 || num==0) return(num)
var neg=(num.charAt(0)=="-")
if (neg) num=num.substr(1)
var newnum=0
for (var index=1;index<=num.length;index++)
newnum=newnum*oldcarry+hexnum.indexOf(num.charAt(index-1))
if (neg)
newnum=-newnum
return(newnum)
}

function decto(num,newcarry)
{
var neg=(num<0)
if (newcarry==10 || num==0) return(num)
num=""+Math.abs(num)
var newnum=""
while (num!=0)
{
newnum=hexnum.charAt(num%newcarry)+newnum
num=Math.floor(num/newcarry)
}
if (neg)
newnum="-"+newnum
return(newnum)
}




emu 2002-04-14
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function factorial(n)
{
n=Math.abs(parseInt(n))
var fac=1
for (;n>0;n-=1)
fac*=n
return(fac)
}

function dms(n)
{
var neg=(n<0)
with(Math)
{
n=abs(n)
var d=floor(n)
var m=floor(60*(n-d))
var s=(n-d)*60-m
}
var dms=d+m/100+s*0.006
if (neg)
dms=-dms
return(dms)
}

function deg(n)
{
var neg=(n<0)
with(Math)
{
n=abs(n)
var d=floor(n)
var m=floor((n-d)*100)
var s=(n-d)*100-m
}
var deg=d+m/60+s/36
if (neg)
deg=-deg
return(deg)
}

function degressToRadians(degress)
{
return(degress*Math.PI/180)
}

function radiansToDegress(radians)
{
return(radians*180/Math.PI)
}
function keypress()
{
if (event.keyCode==48 || event.keyCode==96)
inputkey("0");
else if (event.keyCode==49 || event.keyCode==97)
inputkey("1");
else if (event.keyCode==50 || event.keyCode==98)
inputkey("2");
else if (event.keyCode==51 || event.keyCode==99)
inputkey("3");
else if (event.keyCode==52 || event.keyCode==100)
inputkey("4");
else if (event.keyCode==53 || event.keyCode==101)
inputkey("5");
else if (event.keyCode==54 || event.keyCode==102)
inputkey("6");
else if (event.keyCode==55 || event.keyCode==103)
inputkey("7");
else if (event.keyCode==56 || event.keyCode==104)
inputkey("8");
else if (event.keyCode==57 || event.keyCode==105)
inputkey("9");
else if (event.keyCode==110 || event.keyCode==190)
inputkey(".");
else if (event.keyCode==65)
inputkey("a");
else if (event.keyCode==66)
inputkey("b");
else if (event.keyCode==67)
inputkey("c");
else if (event.keyCode==68)
inputkey("d");
else if (event.keyCode==69)
inputkey("e");
else if (event.keyCode==70)
inputkey("f");
else if (event.keyCode==107 || event.keyCode==187)
operation('+',5);
else if (event.keyCode==109 || event.keyCode==189)
operation('-',5);
else if (event.keyCode==106)
operation('*',6);
else if (event.keyCode==111 || event.keyCode==191)
operation('/',6);
}

//界面

//-->
</script>
</head>
<!--written by GoldHuman li hai-->
<!--2000.8-->
setcdq9801的专栏 2002-04-14
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>科学计算器</title>
<SCRIPT LANGUAGE="JavaScript" src="menu.js"></script>

<style>
<!--
BODY {
font-family: "宋体", "Arial", "Times New Roman";
font-size: 9pt;
background-color: #edf0e1;
color: #0001fC;
background-attachment: fixed;
}
td{font-family: "宋体", "Arial Narrow", "Times New Roman"; font-size:9pt; font-color:#000000}
//-->
</style>
<script language="javascript">
<!--
var endNumber=true
var mem=0
var carry=10
var hexnum="0123456789abcdef"
var angle="d"
var stack=""
var level="0"
var layer=0


//数字键

function inputkey(key)
{
var index=key.charCodeAt(0);
if ((carry==2 && (index==48 || index==49))
|| (carry==8 && index>=48 && index<=55)
|| (carry==10 && (index>=48 && index<=57 || index==46))
|| (carry==16 && ((index>=48 && index<=57) || (index>=97 && index<=102))))
if(endNumber)
{
endNumber=false
document.calc.display.value = key
}
else if(document.calc.display.value == null || document.calc.display.value == "0")
document.calc.display.value = key
else
document.calc.display.value += key
}

function changeSign()
{
if (document.calc.display.value!="0")
if(document.calc.display.value.substr(0,1) == "-")
document.calc.display.value = document.calc.display.value.substr(1)
else
document.calc.display.value = "-" + document.calc.display.value
}

//函数键

function inputfunction(fun,shiftfun)
{
endNumber=true
if (document.calc.shiftf.checked)
document.calc.display.value=decto(funcalc(shiftfun,(todec(document.calc.display.value,carry))),carry)
else
document.calc.display.value=decto(funcalc(fun,(todec(document.calc.display.value,carry))),carry)
document.calc.shiftf.checked=false
document.calc.hypf.checked=false
inputshift()
}

function inputtrig(trig,arctrig,hyp,archyp)
{
if (document.calc.hypf.checked)
inputfunction(hyp,archyp)
else
inputfunction(trig,arctrig)
}


//运算符

function operation(join,newlevel)
{
endNumber=true
var temp=stack.substr(stack.lastIndexOf("(")+1)+document.calc.display.value
while (newlevel!=0 && (newlevel<=(level.charAt(level.length-1))))
{
temp=parse(temp)
level=level.slice(0,-1)
}
if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/))
document.calc.display.value=RegExp.$2
stack=stack.substr(0,stack.lastIndexOf("(")+1)+temp+join
document.calc.operator.value=" "+join+" "
level=level+newlevel

}

//括号

function addbracket()
{
endNumber=true
document.calc.display.value=0
stack=stack+"("
document.calc.operator.value=" "
level=level+0

layer+=1
document.calc.bracket.value="(="+layer
}

function disbracket()
{
endNumber=true
var temp=stack.substr(stack.lastIndexOf("(")+1)+document.calc.display.value
while ((level.charAt(level.length-1))>0)
{
temp=parse(temp)
level=level.slice(0,-1)
}

document.calc.display.value=temp
stack=stack.substr(0,stack.lastIndexOf("("))
document.calc.operator.value=" "
level=level.slice(0,-1)

layer-=1
if (layer>0)
document.calc.bracket.value="(="+layer
else
document.calc.bracket.value=""
}

emu 2002-04-14
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//函数计算

function funcalc(fun,num)
{
with(Math)
{
if (fun=="pi")
return(PI)
if (fun=="e")
return(E)

if (fun=="abs")
return(abs(num))
if (fun=="ceil")
return(ceil(num))
if (fun=="round")
return(round(num))

if (fun=="floor")
return(floor(num))
if (fun=="deci")
return(num-floor(num))


if (fun=="ln" && num>0)
return(log(num))
if (fun=="exp")
return(exp(num))
if (fun=="log" && num>0)
return(log(num)*LOG10E)
if (fun=="expdec")
return(pow(10,num))


if (fun=="cube")
return(num*num*num)
if (fun=="cubt")
return(pow(num,1/3))
if (fun=="sqr")
return(num*num)
if (fun=="sqrt" && num>=0)
return(sqrt(num))

if (fun=="!")
return(factorial(num))

if (fun=="recip" && num!=0)
return(1/num)

if (fun=="dms")
return(dms(num))
if (fun=="deg")
return(deg(num))

if (fun=="~")
return(~num)

if (angle=="d")
{
if (fun=="sin")
return(sin(degressToRadians(num)))
if (fun=="cos")
return(cos(degressToRadians(num)))
if (fun=="tan")
return(tan(degressToRadians(num)))

if (fun=="arcsin" && abs(num)<=1)
return(radiansToDegress(asin(num)))
if (fun=="arccos" && abs(num)<=1)
return(radiansToDegress(acos(num)))
if (fun=="arctan")
return(radiansToDegress(atan(num)))
}
else
{
if (fun=="sin")
return(sin(num))
if (fun=="cos")
return(cos(num))
if (fun=="tan")
return(tan(num))

if (fun=="arcsin" && abs(num)<=1)
return(asin(num))
if (fun=="arccos" && abs(num)<=1)
return(acos(num))
if (fun=="arctan")
return(atan(num))
}

if (fun=="hypsin")
return((exp(num)-exp(0-num))*0.5)
if (fun=="hypcos")
return((exp(num)+exp(-num))*0.5)
if (fun=="hyptan")
return((exp(num)-exp(-num))/(exp(num)+exp(-num)))

if (fun=="ahypsin" | fun=="hypcos" | fun=="hyptan")
{
alert("对不起,公式还没有查到!")
return(num)
}

alert("超出函数定义范围")
return(num)
}
}
emu 2002-04-14
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document.calc.k2.disabled=(carry<=2)
document.calc.k3.disabled=(carry<=2)
document.calc.k4.disabled=(carry<=2)
document.calc.k5.disabled=(carry<=2)
document.calc.k6.disabled=(carry<=2)
document.calc.k7.disabled=(carry<=2)
document.calc.k8.disabled=(carry<=8)
document.calc.k9.disabled=(carry<=8)
document.calc.ka.disabled=(carry<=10)
document.calc.kb.disabled=(carry<=10)
document.calc.kc.disabled=(carry<=10)
document.calc.kd.disabled=(carry<=10)
document.calc.ke.disabled=(carry<=10)
document.calc.kf.disabled=(carry<=10)



}

function inputChangAngle(angletype)
{
endNumber=true
angle=angletype
if (angle=="d")
document.calc.display.value=radiansToDegress(document.calc.display.value)
else
document.calc.display.value=degressToRadians(document.calc.display.value)
endNumber=true
}

function inputshift()
{
if (document.calc.shiftf.checked)
{
document.calc.bt.value="deg "
document.calc.ln.value="exp "
document.calc.log.value="expd"

if (document.calc.hypf.checked)
{
document.calc.sin.value="ahs "
document.calc.cos.value="ahc "
document.calc.tan.value="aht "
}
else
{
document.calc.sin.value="asin"
document.calc.cos.value="acos"
document.calc.tan.value="atan"
}

document.calc.sqr.value="x^.5"
document.calc.cube.value="x^.3"

document.calc.floor.value="小数"
}
else
{
document.calc.bt.value="d.ms"
document.calc.ln.value=" ln "
document.calc.log.value="log "

if (document.calc.hypf.checked)
{
document.calc.sin.value="hsin"
document.calc.cos.value="hcos"
document.calc.tan.value="htan"
}
else
{
document.calc.sin.value="sin "
document.calc.cos.value="cos "
document.calc.tan.value="tan "
}

document.calc.sqr.value="x^2 "
document.calc.cube.value="x^3 "

document.calc.floor.value="取整"
}

}
//存储器部分

function clearmemory()
{
mem=0
document.calc.memory.value=" "
}

function getmemory()
{
endNumber=true
document.calc.display.value=decto(mem,carry)
}

function putmemory()
{
endNumber=true
if (document.calc.display.value!=0)
{
mem=todec(document.calc.display.value,carry)
document.calc.memory.value=" M "
}
else
document.calc.memory.value=" "
}

function addmemory()
{
endNumber=true
mem=parseFloat(mem)+parseFloat(todec(document.calc.display.value,carry))
if (mem==0)
document.calc.memory.value=" "
else
document.calc.memory.value=" M "
}

function multimemory()
{
endNumber=true
mem=parseFloat(mem)*parseFloat(todec(document.calc.display.value,carry))
if (mem==0)
document.calc.memory.value=" "
else
document.calc.memory.value=" M "
}

//十进制转换

function todec(num,oldcarry)
{
if (oldcarry==10 || num==0) return(num)
var neg=(num.charAt(0)=="-")
if (neg) num=num.substr(1)
var newnum=0
for (var index=1;index<=num.length;index++)
newnum=newnum*oldcarry+hexnum.indexOf(num.charAt(index-1))
if (neg)
newnum=-newnum
return(newnum)
}

function decto(num,newcarry)
{
var neg=(num<0)
if (newcarry==10 || num==0) return(num)
num=""+Math.abs(num)
var newnum=""
while (num!=0)
{
newnum=hexnum.charAt(num%newcarry)+newnum
num=Math.floor(num/newcarry)
}
if (neg)
newnum="-"+newnum
return(newnum)
}

//表达式解析

function parse(string)
{
if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/))
return(RegExp.$1+cypher(RegExp.$2,RegExp.$3,RegExp.$4))
else
return(string)
}

//数学运算和位运算

function cypher(left,join,right)
{
left=todec(left,carry)
right=todec(right,carry)
if (join=="+")
return(decto(parseFloat(left)+parseFloat(right),carry))
if (join=="-")
return(decto(left-right,carry))
if (join=="*")
return(decto(left*right,carry))
if (join=="/" && right!=0)
return(decto(left/right,carry))
if (join=="%")
return(decto(left%right,carry))
if (join=="&")
return(decto(left&right,carry))
if (join=="|")
return(decto(left|right,carry))
if (join=="^")
return(decto(Math.pow(left,right),carry))
if (join=="x")
return(decto(left^right,carry))
if (join=="<")
return(decto(left<<right,carry))
alert("除数不能为零")
return(left)
}
emu 2002-04-14
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<SCRIPT>
<!--
parent.moveTo((screen.width-540)/2,(screen.height-335)/2);
parent.resizeTo(540,335);
//-->
</SCRIPT>
<title>科学计算器</title>
<style>
<!--
BODY {
font-family: "宋体", "Arial", "Times New Roman";
font-size: 9pt;
background-color: #d4d4d4;
color: #0001fC;
background-attachment: fixed;
}
td{font-family: "宋体", "Arial Narrow", "Times New Roman"; font-size:9pt; font-color:#000000}
//-->
</style>
<script language="javascript">
<!--
var endNumber=true
var mem=0
var carry=10
var hexnum="0123456789abcdef"
var angle="d"
var stack=""
var level="0"
var layer=0


//数字键

function inputkey(key)
{
var index=key.charCodeAt(0);
if ((carry==2 && (index==48 || index==49))
|| (carry==8 && index>=48 && index<=55)
|| (carry==10 && (index>=48 && index<=57 || index==46))
|| (carry==16 && ((index>=48 && index<=57) || (index>=97 && index<=102))))
if(endNumber)
{
endNumber=false
document.calc.display.value = key
}
else if(document.calc.display.value == null || document.calc.display.value == "0")
document.calc.display.value = key
else
document.calc.display.value += key
}

function changeSign()
{
if (document.calc.display.value!="0")
if(document.calc.display.value.substr(0,1) == "-")
document.calc.display.value = document.calc.display.value.substr(1)
else
document.calc.display.value = "-" + document.calc.display.value
}

//函数键

function inputfunction(fun,shiftfun)
{
endNumber=true
if (document.calc.shiftf.checked)
document.calc.display.value=decto(funcalc(shiftfun,(todec(document.calc.display.value,carry))),carry)
else
document.calc.display.value=decto(funcalc(fun,(todec(document.calc.display.value,carry))),carry)
document.calc.shiftf.checked=false
document.calc.hypf.checked=false
inputshift()
}

function inputtrig(trig,arctrig,hyp,archyp)
{
if (document.calc.hypf.checked)
inputfunction(hyp,archyp)
else
inputfunction(trig,arctrig)
}


//运算符

function operation(join,newlevel)
{
endNumber=true
var temp=stack.substr(stack.lastIndexOf("(")+1)+document.calc.display.value
while (newlevel!=0 && (newlevel<=(level.charAt(level.length-1))))
{
temp=parse(temp)
level=level.slice(0,-1)
}
if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/))
document.calc.display.value=RegExp.$2
stack=stack.substr(0,stack.lastIndexOf("(")+1)+temp+join
document.calc.operator.value=" "+join+" "
level=level+newlevel

}

//括号

function addbracket()
{
endNumber=true
document.calc.display.value=0
stack=stack+"("
document.calc.operator.value=" "
level=level+0

layer+=1
document.calc.bracket.value="(="+layer
}

function disbracket()
{
endNumber=true
var temp=stack.substr(stack.lastIndexOf("(")+1)+document.calc.display.value
while ((level.charAt(level.length-1))>0)
{
temp=parse(temp)
level=level.slice(0,-1)
}

document.calc.display.value=temp
stack=stack.substr(0,stack.lastIndexOf("("))
document.calc.operator.value=" "
level=level.slice(0,-1)

layer-=1
if (layer>0)
document.calc.bracket.value="(="+layer
else
document.calc.bracket.value=""
}

//等号

function result()
{
endNumber=true
while (layer>0)
disbracket()
var temp=stack+document.calc.display.value
while ((level.charAt(level.length-1))>0)
{
temp=parse(temp)
level=level.slice(0,-1)
}

document.calc.display.value=temp
document.calc.bracket.value=""
document.calc.operator.value=""
stack=""
level="0"
}


//修改键

function backspace()
{
if (!endNumber)
{
if(document.calc.display.value.length>1)
document.calc.display.value=document.calc.display.value.substring(0,document.calc.display.value.length - 1)
else
document.calc.display.value=0
}
}

function clearall()
{
document.calc.display.value=0
endNumber=true
stack=""
level="0"
layer=""
document.calc.operator.value=""
document.calc.bracket.value=""
}


//转换键

function inputChangCarry(newcarry)
{
endNumber=true
document.calc.display.value=(decto(todec(document.calc.display.value,carry),newcarry))
carry=newcarry

document.calc.sin.disabled=(carry!=10)
document.calc.cos.disabled=(carry!=10)
document.calc.tan.disabled=(carry!=10)
document.calc.bt.disabled=(carry!=10)
document.calc.pi.disabled=(carry!=10)
document.calc.e.disabled=(carry!=10)
document.calc.kp.disabled=(carry!=10)

qisanyou 2002-04-14
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http://www.kings2.net/code/time/time09.htm
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