//【url传参】之将?param1=...¶m2=...的形式转换为对象json格式
let urlParamResolveToJSONObject = s => s?JSON.parse("{\"" + s.substr(1 + s.indexOf("?")).replace(/&/g, "\",\"").replace(/=/g, "\":\"") + "\"}"):'';


// 测试
urlParamResolveToJSONObject ('?a=1&b=2');//{a: '1', b: '2'}