小程序认证授权书法人代表人这里，是盖签字章还是法人章啊
https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/jiaoyitiyanfen.htmlhttps://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/business-capabilities/ministore/minishopopencomponent2/jiaoyitiyanfen.html
