类里的方法为啥取不到初始值~

Question

本帖最后由 jone_linux 于 2009-07-21 12:27:46 编辑

Answer 1

initialize: function(ResponseMegDivId)
    {
        this._ResponseMegDivId = ResponseMegDivId; // 1
        this._DefMeg = { 
            onCreate: function() {
                        alert(this._ResponseMegDivId); // 2
            }
        };
        this._AjaxDefMeg(this._DefMeg);
    },你这两行代码 1 , 2 中的 this 不是同一对象

Answer 2

        this._DefMeg = { 
            onCreate: function(v){
                return function() {
                    alert(v);
                }
            }(this._ResponseMegDivId);
        };

Answer 3

initialize: function(ResponseMegDivId) 
    { 
        this._ResponseMegDivId = ResponseMegDivId; // 1 
        this._DefMeg = { 
            onCreate: function() { 
                        alert(ResponseMegDivId); // 2  直接显示参数
            } 
        }; 
        this._AjaxDefMeg(this._DefMeg); 
    }, 

Answer 4

LZ要用Prototype的Class，为何有不按其语法写呢