Javascript 修改 URL 参数

String.prototype.changeQuery = function(name,value) {var reg = new RegExp("(^|)"+ name +"=([^&]*)(|$)");var tmp = name + "=" + value;if(this.match(reg) != null){ return this.replace(eval(reg),tmp);}else{ if(this.match("[/?]")) {return this + "&" + tmp; } else {return this + "?" + tmp; }} } var href = 'http://dlib.apabi.com/?Token=44AB&cult=CN&orgid=pku'; alert("old url is -- "+href); href = href.changeQuery("cult","US"); alert("new url is -- "+href);