1、http://www.cnblogs.com/qiugaoying/p/4877502.html2、http://www.cnblogs.com/qiugaoying/p/4904438.html3、http://www.cnblogs.com/qiugaoying/p/4904853.html4、http://www.cnblogs.com/qiugaoying/p/4920454.html