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<script>
//js函數的書寫
function myFunction() {
console.log("你好");
}
//左邊是funcion關鍵字 後面是函數名，裡面寫表達式
//帶參數的兩種寫法
//1.在函數裡面寫實參
function myFunction(num,time,action) {
var num=7,time="點",action="起床";
console.log(num + time + action);
}
//2.在調用函數的時候寫實參
function myFunction(num,time,action) {
console.log(num + time + action);
}
myFunction("7", "點","起床");
//帶返回值寫法
function myFunction(a,b){
var a=5,b=6;
return a+b;
}
//外面接受返回值
function num(a,b) {
return c=a+b;
}
var z=num(7,8); //通過=把return的值獲取到
console.log(z);
</script>
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