function a(){ this.sex=[1,2,3] } function b(){ a.call(this) this.say=function(){ console.log(b.say) } } b.prototype=new a(); var c=new b(); var d=new b(); c.sex.push(4) console.log(c.sex) //[1,2,3,4] console.log(d.sex) //[1,2,3]
function a(){ this.sex=[1,2,3] } function b(){ this.say=function(){ console.log(b.say) } } b.prototype=new a(); var c=new b(); var d=new b(); c.sex.push(4) console.log(c.sex) //[1,2,3,4] console.log(d.sex) //[1,2,3,4]