http://cache.baidu.com/c?word=d%3B%B4%A5%B7%A2%C6%F7%3B%B9%B9%B3%C9%3B%B7%D6%3B%C6%B5%C6%F7%3B%B5%E7%C2%B7&url=http%3A//eda%2Esdedu%2Enet/ewebbook/frame/c303%2Ehtm&b=16&a=18&user=baidu
直接的办法，直接到百度上去输入查一下
