微信如何实现一键关注微信号？（除了二维码）按钮能上现实么？

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http://www.cnblogs.com/zzuIvy/p/careGongzhonghao.html
http://mp.weixin.qq.com/s?__biz=MzIyOTEwNDU2NA==&mid=401536992&idx=1&sn=05c17174455560c999ed293fc244dbda&scene=4#wechat_redirect