这种问题最好先百度或Google下吧
http://www.google.com.hk/search?client=aff-os-worldbrowser&forid=1&ie=utf-8&oe=UTF-8&hl=zh-CN&q=%E4%BB%80%E4%B9%88%E6%98%AF%E4%B8%93%E5%88%A9%E4%BF%A1%E6%81%AF%EF%BC%9F
http://www.google.com.hk/search?client=aff-os-worldbrowser&forid=1&ie=utf-8&oe=UTF-8&hl=zh-CN&q=%E4%B8%93%E5%88%A9%E4%BF%A1%E6%81%AF%E7%9A%84%E4%BD%9C%E7%94%A8%E6%98%AF%E4%BB%80%E4%B9%88%3F |
