正则
原贴请参见: http://www.iecn.net/bbs/view/106503.html
要做个模板替换东西里面变量采用${MyName}这种格式命名方式
在进行全局替换时遇到两个难点: 1.要么无法替换掉$等特殊符号
2.要么无法忽略大小写
在海浪有帮助下
终于有了最佳实现方式:) 最佳实现方式:
复制代码 代码如下:
<script type="text/javascript">
String.prototype.replaceAll =
ReplaceAll; function
ReplaceAll(AFindText,ARepText){ var raRegExp =
RegExp(AFindText.replace(/([\(\)\[\]\{\}\^\$\+\-\*\?\.\"\'\|\/\\])/g,"\\$1"),"ig"); 
this.replace(raRegExp,ARepText); }
var ssString="www.cnlei.com;www.CnLei.net;www.cnlei.org";
alert(ssString.replaceAll("cnlei","iecn"));
ssString="www.${MyName}.com;www.${MyName}.net;www.${MyName}.org";
alert(ssString.replaceAll("${MyName}","cnlei"));
ssString="www.{MyName}.com;www.{MyName}.net;www.{MyName}.org";
alert(ssString.replaceAll("{MyName}","cnlei"));
</script>
以前使用思路方法
:(可实现忽略大小但无法实现特殊符号替换) 复制代码 代码如下:
<script type="text/javascript">
String.prototype.replaceString =
ReplaceAll; function
ReplaceAll(AFindText,ARepText){ var raRegExp =
RegExp(AFindText,"ig"); this.replace(raRegExp,ARepText); }
var ssString="www.cnlei.com;www.CnLei.net;www.cnlei.org";
alert(ssString.replaceString("cnlei","iecn"));
ssString="www.${MyName}.com;www.${MyName}.net;www.${MyName}.org";
alert(ssString.replaceString("${MyName}","cnlei"));
ssString="www.{MyName}.com;www.{MyName}.net;www.{MyName}.org";
alert(ssString.replaceString("{MyName}","cnlei"));
</script>
以前使用
方式 2:(可替换特殊符号$等但无法忽略大小写) 复制代码 代码如下:
<script type="text/javascript">
String.prototype.replaceString = function(s1,s2){
this.str=this;
(s1.length
0) this.str; var idx=this.str.indexOf(s1);
while(idx>=0){
this.str=this.str.sub
(0, idx)+s2+this.str.substr(idx+s1.length); idx=this.str.indexOf(s1);
}
this.str; }
var ssString="www.cnlei.com;www.CnLei.net;www.cnlei.org";
alert(ssString.replaceString("cnlei","iecn"));
ssString="www.${MyName}.com;www.${MyName}.net;www.${MyName}.org";
alert(ssString.replaceString("${MyName}","cnlei"));
ssString="www.{MyName}.com;www.{MyName}.net;www.{MyName}.org";
alert(ssString.replaceString("{MyName}","cnlei"));
</script>
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