JavaScript with

function Animal() {
    this.name = 'xxx';
    this.id = 1;
}

var animal = new Animal();
with(animal) {  // 括号内可以不用 '对象.属性'，直接用属性名或方法
    alert(name);
    alert(id);
}

 

转载于:https://www.cnblogs.com/shouwangzhe-/p/3994852.html