<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<BODY>
<script>
var str = "wordwordwordword";
var strNew = str.replace("word","Excel");
alert(strNew);
</script>
</BODY>
</HTML>
str.replace(/word/g,"Excel")
<HEAD>
<TITLE> New Document </TITLE>
<script>
function replaceAll(str)
{
if(str!=null)
str = str.replace(/word/g,"Excel")
return str;
}
</script>
</HEAD>
<BODY>
<script>
var str = "wordwordwordword";
var strNew = str.replace("word","Excel");
strNew = replaceAll(str);
alert(strNew);
</script>
</BODY>
</HTML>
str.replace(new RegExp("word","gm"),"Excel")
String.prototype.replaceAll = function(s1,s2){
return this.replace(new RegExp(s1,"gm"),s2);
}
str.replaceAll("word","Excel");
JavaScript正则表达式在线测试工具: [url=http://tools.jb51.net/regex/javascript]http://tools.jb51.net/regex/javascript[/url] 正则表达式在线生成工具: [url=http://tools.jb51.net/regex/create_reg]http://tools.jb51.net/regex/create_reg[/url] [/b]
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