请参考:http://www.baidu.com/baidu?word=%D5%E3%BD%AD%D0%C2%B2%FD%CD%F2%B7%E1%B0%C2%CC%D8%BF%D8%B9%C9%BC%AF%CD%C5%D3%D0%CF%DE%B9%AB%CB%BE&tn=myie2dg