浮点型数字的运算精度?
无爱大叔 2003-04-24 10:26:19 如下:浮点数不够精确,怎样才能避免!
<SCRIPT LANGUAGE="JavaScript">
function totalnum()
{
t1=parseFloat(form1.t1.value);
t2=parseFloat(form1.t2.value);
t3=parseFloat(form1.t3.value);
t4=parseFloat(form1.t4.value);
form1.total1.value=t1+t2+t3+t4
}
</SCRIPT>
<FORM name=form1>
Total:<INPUT TYPE="text" NAME="total1"><BR>
1<INPUT TYPE="text" NAME="t1" value="0.3" onpropertychange="totalnum()"><BR>
2<INPUT TYPE="text" NAME="t2" value="0.223" onpropertychange="totalnum()"><BR>
3<INPUT TYPE="text" NAME="t3" value="1" onpropertychange="totalnum()"><BR>
4<INPUT TYPE="text" NAME="t4" value="44" onpropertychange="totalnum()"><BR>
</FORM>