http://www.iecn.net/bbs/view/106503.html
因为要做个模板替换的东西，里面的变量采用${MyName}这种格式的命名方式。在进行全局替换时，遇到两个难点：
1.要么无法替换掉$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：
代码如下:
String.prototype.replaceAll = stringReplaceAll;
function stringReplaceAll(AFindText,ARepText){
var raRegExp = new RegExp(AFindText.replace(/([()[]{}^$+-*?."'|/\])/g,"\$1"),"ig");
return 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"));
以前使用方法一：（可实现忽略大小，但无法实现特殊符号的替换）
代码如下:
String.prototype.replaceString = stringReplaceAll;
function stringReplaceAll(AFindText,ARepText){
var raRegExp = new RegExp(AFindText,"ig");
return 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"));
代码如下:
String.prototype.replaceString = function(s1,s2){
this.str=this;
if(s1.length==0)return this.str;
var idx=this.str.indexOf(s1);
while(idx>=0){
this.str=this.str.substring(0, idx)+s2+this.str.substr(idx+s1.length);
idx=this.str.indexOf(s1);
}
return 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"));