请参考http://www.baidu.com/s?tn=myie2dg&ie=gb2312&bs=%CC%F9%C6%AC%B5%E7%D7%D3%D4%AA%C6%F7%BC%FE&sr=&z=&cl=3&f=8&wd=%CC%F9%C6%AC%B5%E7%D7%D3%D4%AA%C6%F7%BC%FE%C9%EE%DB%DA&ct=0