用字面量创建对象桌子,有属性:长、宽、高、面积、体积 有方法:求面积、求体积
<script> var table = { length: 60, width: 40, height: 120, getArea : function () { var area= this.length * this.width; var volume = this.length* this.width*this.height document.write("面积:"+area); document.write(\'<br>\'+"体积:"+volume); return area; } } table.getArea(); </script>