mutil专题
about mutil-threads
http://wenku.baidu.com/link?url=2mpkrn3dKiYjaT8f1kY5oI2Srnpr-gCyYSP-UfaXOMARAZCRx3v7gg41PcWYR8VNyEOkM2gQ3Nr862Spoq4SEnd-WQkhHcCZGmGUurcZbs3