bind方法还有一个重要的功能:绑定参数表,如下所示
var person = {
name = 'zwy',
says:function(act,obj){
console.log(this.name+''+act+''+obj);
}
};
person.says('loves','cry');//zwy loves cry
byvoidLoves = person.says.bind(person,'loves');
byvoidLoves('you');//输出 zwy loves you
var person