呼叫函式返回值
阿新 • • 發佈:2019-01-29
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<!-- 利用原生js使圖片自適應居中-->
<script>
window.onload=function(){
var param1 = sayHello("hello");
console.log(param1);
alert(param1);
var param2 = sayBye("say","Bye");
console.log(param2);
console.log(param2.a);
console.log(param2.b);
}
//定義的函式值只有一個
function sayHello( text ){
var hello = text;
console.log(hello);
return hello;
}
//定義的函式值有多個
function sayBye( say, Bye ){
var saytext = {a: say, b: Bye};
console.log(saytext);
return saytext;
}
</script>
</body>
</html>