JavaScript构建自己的对象示例

<script type='text/javascript'>//构建一个CustomerBooking类//构造函数function CustomerBooking(bookingId,customerName,film,showDate){  this.bookingId = bookingId;  this.customerName = customerName;  this.film = film;  this.showDate =showDate;}//getBookingId方法，有点奇特CustomerBooking.prototype.getBookingId = function(){  return this.bookingId;}//setBookingId方法CustomerBooking.prototype.setBookingId = function(bookingId){  this.bookingId = bookingId;}CustomerBooking.prototype.getCustomerName = function(){  return this.customerName;}CustomerBooking.prototype.setCustomerName = function(customerName){  this.customerName = customerName;}CustomerBooking.prototype.getFilm = function(){  return this.film;}CustomerBooking.prototype.setFilm = function(film){  this.film = film;}CustomerBooking.prototype.getShowDate = function(){  return this.showDate;}CustomerBooking.prototype.setShowDate = function(showDate){  this.showDate = showDate;}//构建一个cineme类，属性为数组，可以保存预定信息function cinema(){  this.bookings = new Array();}//addBooking方法cinema.prototype.addBooking = function(bookingId,customerName,film,showDate){  this.bookings[bookingId] = new CustomerBooking(bookingId,customerName,film,showDate);}//getBookingsTable方法cinema.prototype.getBookingsTable = function(){  var booking;  var bookingsTableHTML="<table border=1>";  for(booking in this.bookings){    bookingsTableHTML +="<tr><td>";    bookingsTableHTML +=this.bookings[booking].getBookingId();    bookingsTableHTML +="</td>";    bookingsTableHTML +="<td>";    bookingsTableHTML +=this.bookings[booking].getCustomerName();    bookingsTableHTML +="</td>";    bookingsTableHTML +="<td>";    bookingsTableHTML +=this.bookings[booking].getFilm();    bookingsTableHTML +="</td>";    bookingsTableHTML +="<td>";    bookingsTableHTML +=this.bookings[booking].getShowDate();    bookingsTableHTML +="</td></tr>";  }  bookingsTableHTML +="</table>";  return bookingsTableHTML;}//新建cinema对象就可以了，这里会通过addBooking自动生成customerBooking对象，保存到cinema对象bookingFilm的属性当中，然后调用getBookingsTable方法来获取数据信息var bookingFilm = new cinema();bookingFilm.addBooking(123,"Jack","Love Java","1 May 2012");bookingFilm.addBooking(123,"Jack","Love Java","1 May 2012");bookingFilm.addBooking(122,"Jack","Love Java","1 May 2012");bookingFilm.addBooking(121,"Jack","Love Java","1 May 2012");bookingFilm.addBooking(120,"Jack","Love Java","1 May 2012");bookingFilm.addBooking(119,"Jack","Love Java","1 May 2012");document.write(bookingFilm.getBookingsTable());</script>