javascript - 实现jquery类似的$调用方法

 1    var $ = {
 2             name: function (name) {
 3                 return name;
 4             },
 5             age: function (age) {
 6                 return age;
 7             },
 8             numCount: function (a, b) {
 9                 return a + b;
10             }
11         }
12 
13         // window挂载在$,再赋值给jQuery
14         window.jQuery = window.$;
15 
16         console.log($.name('张三'), jQuery.age(18), $.numCount(1, 2));