// 1.任意参数的加法运算
function add(){
var sum = 0
for(var i=0;i<arguments.length;i++){
if(!isNaN(arguments[i])){
sum += parseFloat(arguments[i])
}
}
return sum
}
console.log(add(1,2))
console.log(add(1,2，3,4,5,6)) // 2.闭包
var name = "cynthia"
var obj = {
name : "wuqian",
sex : "girl",
getName : function(){
return this.name
}
}
console.log(obj.getName()) //wuqian
console.log(name) //cynthai // 3.调用对象字面量里的方法
var cyn = {
name : "wuqian",
sex : "girl",
Add : function(){
var sum = 0
for(var i=0;i<arguments.length;i++){
if(!isNaN(arguments[i])){
sum += parseFloat(arguments[i])
}
}
return sum
}
};
cyn.say = function(){
return "给对象字面量添加方法"
}
cyn.socre = "给对象字面量添加变量" console.log(cyn.Add(100,300)) //
console.log(cyn.say()) //给对象字面量添加方法
console.log(cyn.socre) //给对象字面量添加变量