this题目:

第一题:

      var myObject = {
        foo : "bar",
        fun : function(){
          var self = this;
          console.log("outer fun: this.foo = " + this.foo);
          console.log("outer fun: self.foo = " + self.foo);
          
          (function(){
            console.log("inner fun : this.foo = " + this.foo);
            console.log("outer fun: self.foo = " + self.foo);
          })();
        }
      }
      myObject.fun();
    

第二题:

      var hero = {
        _name: "wuwei",
        getName: function (){
          return this._name;
        }
      }
      var stoleName = hero.getName;

      console.log(stoleName());
      console.log(hero.getName());
    

第三题:

      var length = 10;
      function fn(){
        console.log(this.length);
      }

      var obj = {
        length: 5,
        method: function(fn){
          fn();
          arguments[0]();
        }
      }
      obj.method(fn,1);
    

第四题:

    function a(){
      y = function(){
      x = 2;
      };
      return function(){
        var x = 3;
        y();
        console.log(this.x);
      }.bind(this)
    }
    
    a();
   

第五题:

      var n = 10;
      var obj = {
        n: 5,
        c: a()
      };
      function a(){
        var n = 7;
        var c = function(){
          var n = 3;
          console.log(this.n);
        }
        return c;
      }
      obj.c(); // 5
    

对象题目

第六题:

      var a = {},
        b = {name:"b"},
        c = {name:"c"};
      a[b] = 123;
      a[c] = 456;
      
      console.log(a[b]);
    

第七题:

      var a = {n:1};
      var b = a;
      a.n = a = {m:1}
      console.log(a);
      console.log(b)