first commit

cloudfunctions/getOpenId/index.js

@@ -0,0 +1,13 @@
+// 云函数入口文件
+const cloud = require('wx-server-sdk')
+
+cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
+
+// 云函数入口函数
+exports.main = async (event, context) => {
+    const wxContext = cloud.getWXContext()
+
+    return {
+        openid: wxContext.OPENID
+    }
+}