function a(){ this.s="ss" this.b="bb" }Object.prototype.o="oo" Function.prototype.ss="ss" a.prototype.c="cccccccc" a.prototype.d="dddddddd" a.prototype.e="cccccccc" a.prototype.f="dddddddd" //var aa=new a() for(i in a) alert(i)运行一下 就很明白了
function a(){ this.s="ss" this.b="bb" }Object.prototype.o="object" Function.prototype.o="function" a.o="aaa" alert(a.o)function a(){ this.s="ss" this.b="bb" a.fn=function(){}//不能被 for(i in a)和for(i in aa) } Object.prototype.o="object" Function.prototype.o="function" a.prototype.c="cccccccc" a.prototype.d="dddddddd" a.prototype.e="cccccccc" a.prototype.f="dddddddd" //var aa=new a() for(i in a) alert(i)function a(){ this.s="ss" this.b="bb"
} a.fn = function(){}//只能被for(i in a) Object.prototype.o="object" Function.prototype.Fun="function" a.prototype.c="cccccccc" a.prototype.d="dddddddd" a.prototype.e="cccccccc" a.prototype.f="dddddddd" var aa=new a() for(i in aa) document.writeln(i)//ie下:f e d c o s b firefox下:s b c d e f ofunction a(){ this.s="ss" this.b="bb"
} a.fn = function(){}//只能被for(i in a) Object.prototype.o="object" Function.prototype.Fun="function" a.prototype.c="cccccccc" a.prototype.d="dddddddd" a.prototype.e="cccccccc" a.prototype.f="dddddddd" //var aa=new a() for(i in a) document.writeln(i)//ie下:Fun o fn firefox下:fn prototype Fun o //这里 如果Function.prototype.?和 Object.prototype.?同名 Function.prototype.? //将覆盖Object.prototype.?
this.s="ss"
this.b="bb"
}Object.prototype.o="oo"
Function.prototype.ss="ss"
a.prototype.c="cccccccc"
a.prototype.d="dddddddd"
a.prototype.e="cccccccc"
a.prototype.f="dddddddd"
//var aa=new a()
for(i in a)
alert(i)运行一下 就很明白了
this.s="ss"
this.b="bb"
}Object.prototype.o="object"
Function.prototype.o="function"
a.o="aaa"
alert(a.o)function a(){
this.s="ss"
this.b="bb"
a.fn=function(){}//不能被 for(i in a)和for(i in aa)
}
Object.prototype.o="object"
Function.prototype.o="function"
a.prototype.c="cccccccc"
a.prototype.d="dddddddd"
a.prototype.e="cccccccc"
a.prototype.f="dddddddd"
//var aa=new a()
for(i in a)
alert(i)function a(){
this.s="ss"
this.b="bb"
}
a.fn = function(){}//只能被for(i in a)
Object.prototype.o="object"
Function.prototype.Fun="function"
a.prototype.c="cccccccc"
a.prototype.d="dddddddd"
a.prototype.e="cccccccc"
a.prototype.f="dddddddd"
var aa=new a()
for(i in aa)
document.writeln(i)//ie下:f e d c o s b firefox下:s b c d e f ofunction a(){
this.s="ss"
this.b="bb"
}
a.fn = function(){}//只能被for(i in a)
Object.prototype.o="object"
Function.prototype.Fun="function"
a.prototype.c="cccccccc"
a.prototype.d="dddddddd"
a.prototype.e="cccccccc"
a.prototype.f="dddddddd"
//var aa=new a()
for(i in a)
document.writeln(i)//ie下:Fun o fn firefox下:fn prototype Fun o
//这里 如果Function.prototype.?和 Object.prototype.?同名 Function.prototype.?
//将覆盖Object.prototype.?