?? prototypechainingexample.htm
字號(hào):
<html>
<head>
<title>Example</title>
</head>
<body>
<script type="text/javascript">
function ClassA() {
}
ClassA.prototype.color = "red";
ClassA.prototype.sayColor = function () {
alert(this.color);
};
function ClassB() {
}
ClassB.prototype = new ClassA();
ClassB.prototype.name = "";
ClassB.prototype.sayName = function () {
alert(this.name);
};
var objA = new ClassA();
var objB = new ClassB();
objA.color = "red";
objB.color = "blue";
objB.name = "Nicholas";
objA.sayColor();
objB.sayColor();
objB.sayName();
</script>
</body>
</html>
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -