创建新的小程序，进出码，体温上报功能迁移基本完成

weixin-miniprogram/utils/scanQRCode.js

@@ -0,0 +1,25 @@
+function scanQRCode(Taro) {
+  // 只允许从相机扫码
+  Taro.scanCode({
+    onlyFromCamera: true,
+    success(res) {
+      console.log(res)
+      if (res.scanType == "WX_CODE" && res.path) {
+        let searchParams = res.path.split('?');
+        if (searchParams.length > 1 && searchParams[1].startsWith('scene=guard')) {
+          Taro.navigateTo({
+            url: "/pages/scan/entrance"
+          })
+          return
+        }
+      }
+      Taro.showToast({
+        title: "您扫描的不是门禁码",
+        icon: 'error',
+        duration: 2000
+      })
+    }
+  })
+}
+
+module.exports = scanQRCode;