js六种继承（es5）

1.原型链继承

function Super() { this.name = "super"; } function Sub() {} Sub.prototype = new Super();

2.构造函数继承

function Super() { this.name = "super"; } function Sub() { Super.call(this); }

3.组合继承

function Super() { this.name = "super"; } function Sub() { Super.call(this); } Sub.protptype = new Super(); Sub.protptype.constructor = Sub;

4.原型式继承

function create(o) { function F() {}; F.prototype = o; return new F(); }

5.寄生式继承

function create(o) { function F() {}; F.prototype = o; return new F(); } function createSub(o) { var clone = create(o); clone.say = function() {}; return clone; }

6.寄生组合式继承

function create(o) { function F() {}; F.prototype = o; return new F(); } function createSub(sub, Super) { var clone = create(Super.prototype); clone.prototype.constructor =sub; return clone; }