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js继承实例

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第一种方法:对象冒充(临时属性)

借用临时属性,指向超类,末了删除

function Person(name,gender){	this.name=name;	this.gender=gender;	this.report=function(){		alert(this.name);	}}function Employee(name,gender,employeeID){	this.method=Person;	this.method(name,gender);	delete this.method;	this.employeeID=employeeID;	this.getemployeeID=function(){		alert(this.employeeID);	}	var _this=this;	this.report=function(){		setInterval(function(){			alert(_this.employeeID+":"+_this.name);		},1000)	}	}var jj=new Employee("jj","男","24");jj.report();

第二种方法:对象冒充(call,apply)

function Person(name,gender){	this.name=name;	this.gender=gender;	this.report=function(){		alert(this.name);	}}function Employee(name,gender,employeeID){	Person.apply(this,new Array(name));     //Person.call(this,name); 	this.employeeID=employeeID;	this.getemployeeID=function(){		alert(this.employeeID);	}	var _this=this;	this.report=function(){		setInterval(function(){			alert(_this.employeeID+":"+_this.name);		},1000)	}	}var jj=new Employee("jj","男","24");jj.report();

第三种方法:原型链的方式(这种方式实例化子类时不能将参数传给父类)

 

 

 

 

 

 

最后,总结一下自认为较好的继承实现方式,成员变量采用对象冒充方式,成员方法采用原型链方式,

js继承实例