function getCaption(url,parameter) {
var index = url.lastIndexOf(parameter);
url = url.substring(index+1,url.length);
return url;
}
var url="http://www.baidu.com/123";
var a = getCaption(url,"/");
console.log(a,'aaa')
标签：index,url,最后,getCaption,获取,地址,var,parameter From： https://www.cnblogs.com/wangshengli520/p/17085167.html