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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" onkeyup="doEval()"></asp:TextBox>+<asp:TextBox ID="TextBox2"
runat="server" onkeyup="doEval()"></asp:TextBox>=<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</div>
</form>
<script type="text/javascript">
function doEval(){
var sTxt1=document.getElementById("<%=TextBox1.ClientID %>").value;
var sTxt2=document.getElementById("<%=TextBox2.ClientID %>").value;
if(sTxt1!=""&&sTxt2!=""){
var oTxt=document.getElementById("<%=TextBox3.ClientID %>");
oTxt.value=accMul(sTxt1,sTxt2);
}
}
function accMul(arg1,arg2)
{
var m=0,s1=arg1.toString(),s2=arg2.toString();
try{m+=s1.split(".")[1].length}catch(e){}
try{m+=s2.split(".")[1].length}catch(e){}
return Number(s1.replace(".",""))*Number(s2.replace(".",""))/Math.pow(10,m)
}
</script>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" runat="server" onkeyup="doEval()"></asp:TextBox>+<asp:TextBox ID="TextBox2"
runat="server" onkeyup="doEval()"></asp:TextBox>=<asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
</div>
</form>
<script type="text/javascript">
function doEval(){
var sTxt1=document.getElementById("<%=TextBox1.ClientID %>").value;
var sTxt2=document.getElementById("<%=TextBox2.ClientID %>").value;
if(sTxt1!=""&&sTxt2!=""){
var oTxt=document.getElementById("<%=TextBox3.ClientID %>");
oTxt.value=eval(sTxt1+"+"+sTxt2);
}
}
</script>
</body>
</html>