POST提交时总是报错：
{"errcode":40017,"errmsg":"invalid button type"}
最后查出来是由于数据中有中文引起的
解决：
data = {"button":[
{"name": u"会员服务",
"sub_button":[
{"type":"click","name":u"健康咨询","key":"JKZX"},
]
},
{"name":u"申请加入","sub_button":[
{"type":"view","name":u"企业入会申请","url": ""},
]
},
{"type":"view","name":u"关于","url":""}
]
}
url = 'https://api....
