解决conneczhust函数阻塞
http://michaelyou.github.io/2015/03/03/connect%E5%87%BD%E6%95%B0%E4%BC%9A%E9%98%BB%E5%A1%9E%EF%BC%8C%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%EF%BC%9F/
http://michaelyou.github.io/2015/03/03/connect%E5%87%BD%E6%95%B0%E4%BC%9A%E9%98%BB%E5%A1%9E%EF%BC%8C%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%EF%BC%9F/
