//选择 |
//分组 ( )
var str = "哪里,哪去能发多少积分"
var reg = /哪里|能发/g
console.log(str.replace(reg,"*"));
var url = "http://www.baidu.com"
var https = "https://www.baidu.com"
var reg =/(http|https):\/\/www\.baidu\.com/;
console.log(reg.test(url))
console.log(reg.test(https))