let url = "http://www.ncyteng.com?names=zhuang&sex=man&age=18";
let querys = url.substring(url.indexOf('?') + 1).split('&')
.map((query) => query.split('='))
.reduce((params, pairs) => (params[pairs[0]] = pairs[1] || '', params), {});

console.log(querys);
//{age:"18",names:"zhuang",sex:"man"}