后台->应用管理-插件管理-支付插件
设置pid,密钥key
![]
1.APPID查看地址
https://pay.weixin.qq.com/index.php/extend/merchant_appid/mapay_platform/account_manage
2.商户号查看地址
https://pay.weixin.qq.com/index.php/extend/pay_setting
3.商户支付密钥设置地址
https://pay.weixin.qq.com/index.php/account/api_cert
https://pay.weixin.qq.com/index.php/extend/pay_setting