var CheckObject = function(){};CheckObject.checkName = function(){ }CheckObject.checkEmail = function(){}CheckObject.checkPassword = function(){}var a = CheckObject();console.log(window);//控制臺中結(jié)果//checkObject:function(){}包含checkName，checkEmail和checkPassword方法。//a:undefined求問大神為什么沒有實現(xiàn)繼承？
為什么沒有實現(xiàn)繼承？
瀟湘沐
2018-11-14 13:15:27
