文档
https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter3_1_1.shtml https://pay.weixin.qq.com/docs/merchant/apis/jsapi-payment/direct-jsons/jsapi-prepay.html
获取授权码
https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html
不同业务
https://pay.weixin.qq.com/wiki/doc/apiv3/open/pay/chapter1_1_1.shtml
支付接口
https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter3_1_1.shtml
名词解释
https://pay.weixin.qq.com/wiki/doc/apiv3/terms_definition/chapter1_1_3.shtml#part-3
sdk
https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay6_0.shtml
https://pay.weixin.qq.com/docs/merchant/development/sdk-tool/sdk-tool.html
常见问题
https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/faq/chapter2_15.shtml?index=2#menu11
安全
主要是签名和加密
https://pay.weixin.qq.com/docs/merchant/development/interface-rules/certificate-faqs.html https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay3_1.shtml https://kf.qq.com/product/wechatpaymentmerchant.html#hid=2874
对账
https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_6