这是返回的head_img:
http://wx.qlogo.cn/mmopen/Jiavz9UrH80mcWce5HAAhdHaJllIC8rD5u5zzdD2oXll20ACvuFj8hA/0/Tbg7FPdyyuOBiawgfibQeujA/0
你好,补充下appid