示例：格式转换

var http = "https://192.168.4.18?limit=20&offset=0"
// [{limit:20},{offset:0}]
var arr = http.split("?")[1].split("&")
var res = arr.map(item=>{
    var obj = { }
    obj[item.split("=")[0]]=item.split("=")[1]
    return obj
}
console.log(res)

  var str = "?key=你&age=18"
         var res = str.slice(1)
         var list = res.split("&");
         console.log(list)
         var key = list[0];
         var age = list[1];
         key = key.split("=")[1];
         age = age.split("=")[1];
         var obj ={
             key,
             age
         }
         console.log(obj)