<script LANGUAGE="JavaScript">
var a="asd\\sdfsdf\\123"
alert(a)
alert(a.replace(/\\/g,"m"))
</script> 要用转义符\,2个\\个才代表\
var a="asd\\sdfsdf\\123"
alert(a)
alert(a.replace(/\\/g,"m"))
</script> 要用转义符\,2个\\个才代表\
var s = "\\a"
alert(s.replace("\\" ,""));
</script>
<input type="text" id="aa" value="">
<input type="text" id="bb" value="">
<script LANGUAGE="JavaScript">
function fun(){
alert(document.getElementById("aa").value)
document.getElementById("bb").value=document.getElementById("aa").value
}
</script>
没看明白,在第1个里 输入了几个\,然后点按钮看看
<input type="text" id="aa" value="">
<input type="text" id="bb" value="">
<table>
<tr onclick='alert(this.rowsIndex)'><td>1111111111111111</td></tr>
<tr><td>2222222222222</td></tr>
</table>
<script LANGUAGE="JavaScript">
var a="asd\\sdfsdf\\123"
//alert(a)
//alert(a.replace(/\\/g,"m"))
function fun(){
var vv=document.getElementById("aa").value
var cc=0;
vv.replace(/(\\)/g,function(a,b){cc=cc+1;return ""})
alert(cc)
document.getElementById("bb").value=document.getElementById("aa").value
}
</script> 简单的
<input type="text" id="aa" value="">
<input type="text" id="bb" value=""><script LANGUAGE="JavaScript">
var a="asd\\sdfsdf\\123"
//alert(a)
//alert(a.replace(/\\/g,"m"))
function fun(){
var vv=document.getElementById("aa").value
var cc=0;
vv.replace(/(\\)/g,function(a,b){cc=cc+1;return "m"})alert(cc)
document.getElementById("bb").value=document.getElementById("aa").value.replace(/(\\)/g,"m")
}
</script>
========
什么意思???这样??<html>
<head>
<title></title>
</head>
<body>
<input type="button" id="a" value="Go" onclick="fun()"> <br />
输入:<input type="text" id="aa" value=""> <br />
结果:<input type="text" id="bb" value="">
<script type="text/javascript">
function fun(){
var reg=/(\\+)/g
var str="";
var v=document.getElementById("aa").value;if(v=="")
{
alert("有0个\\!");
return;
}
var match;while((match=reg.exec(v))!=null)
{
str+=match[0];
}
alert("有"+str.length+"个\\!");
document.getElementById("bb").value=str;
}
</script>
</body>
</html>
<input type="text" id="aa" value="">
<input type="text" id="bb" value=""><script LANGUAGE="JavaScript">
var a="asd\\sdfsdf\\123"
//alert(a)
//alert(a.replace(/\\/g,"m"))
function fun(){
var vv=document.getElementById("aa").value
var cc=0;
document.getElementById("bb").value=vv.replace(/(\\)/g,function(a,b){cc=cc+1;return "m";})
alert(cc)
}
</script>
<input type="text" id="aa" value="">
<input type="text" id="bb" value="">
<script LANGUAGE="JavaScript">
function fun(){
var vv=document.getElementById("aa").value
var cc=0;
document.getElementById("bb").value=vv.replace(/(\\)/g,function(){cc=cc+1;return "m";})
alert(cc)
}
</script>
这个木有问题,应改可以