代码如下: <html> <head> <title>Example</title> </head> <body> <mce:script type="text/javascript"><!-- function ClassA(sColor) { this.color = sColor; this.sayColor = function () { alert(this.color); }; } function ClassB(sColor, sName) { this.newMethod = ClassA; this.newMethod(sColor); delete this.newMethod; this.name = sName; this.sayName = function () { alert(this.name); }; } var objA = new ClassA("red"); var objB = new ClassB("blue", "Nicholas"); objA.sayColor(); objB.sayColor(); objB.sayName(); // --></mce:script> </body> </html>