建议你参考这个教程http://wenku.baidu.com/link?url=d6cCL9z80VjJpcXFiFt8kqujjSLDcrZYlFdkdrYeH0oQLR0pfHtRbVlBTTAAP0N7o3Pj_ux9xftTlXmna-B9DgLchgZDmQHp-XPS-tTgWBG
