jquery的网络引用地址 http://apps.bdimg.com/libs/jquery/1.6.4/jquery.js http://apps.bdimg.com/libs/jquery/1.6.4/jquery.min.js http://apps.bdimg.com/libs/jquery/2.1.1/jquery.js http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js