JS学习记录02

函数和对象

函数类似swift

<script>

fuction look(){

}
//调用
look();
</script>

//加法运算
<script>

fuction sum(num1,num2){
reture num1 + num2;
}
//调用
var result = sum(10,20);
console.log(result);
</script>

<script>
function sum([numers]) {
var add = 0;
for (var i =0;i<numers.length;i++){
add += numers[i];
}
return add;
}
var result2 = sum([55,0,1,1,3,2]);
console.log(result2);
</script>
//函数中有个内置数组
<script>
function sum3() {
var add = 0;
for (var i =0;i<arguments.length;i++){
add += arguments[i];
}
return add;
}

      console.log(sum3(12,12,3,1,4));
</script>

//匿名函数
var score = function(){

    }
    score();

[] ,{} 这里都是js中的对象，主要是用于数据的传递