在cnblogs上看了有关js些文章 做下笔记:
先看代码1:
function car{
var wheel = 3;//私有变量
this.wheel = 4;//公有变量
alert(wheel);
alert(this.wheel);
}
var car1 = car;结果是:3 4
代码2:
function car{
var wheel = 3;//私有变量
this.wheel = 4;//公有变量
}
var car1 = car;
alert(car1.wheel);结果:4
var wheel = 3是局部变量this.wheel=4是公有变量若想访问car中私有变量请看代码3:
function car{
var wheel = 3;//私有变量
this.wheel = 4;//公有变量
this.getPrivateVal = function{
wheel;
}
}
var car1 = car;
alert(car1.getPrivateVal);结果:3