得规定有几位小数才行,以两位小数为例
<script language='javascript'>
var temp1=parseFloat(txt1);
var temp2=parseFloat(txt2); alert((temp1*100+temp2*100)/100));
</script>
<script language='javascript'>
var temp1=parseFloat(txt1);
var temp2=parseFloat(txt2); alert((temp1*100+temp2*100)/100));
</script>
----------------------------------
<script language='javascript'>
var temp1=parseFloat("213.333");
var temp2=parseFloat("11111.1"); alert((temp1*100+temp2*100)/100);
</script>
<head>
<script>function a(){
var t1=parseFloat(1.2345);
var t2=parseFloat(2.2565);alert(t1+t2);}
</script>
</head>
<body>
<input type="check" onclick="a()">输出结果
</body>
</html>
得出的结果小数点后有很多个位,如何控制呢?我准备写一个公共的方法开控制!