feat:分析值保留两位有效数字计算

components/n-scanTemp/n-scanTemp.vue

@@ -7,7 +7,7 @@
       <span>{{ title }}</span>
     </view>
     <view class="x-c">
-      <u-icon size="150" color="#0055A2" name="scan"></u-icon>
+      <u-icon size="150" color="#0055A2" name="scan" @click="handleScan"></u-icon>
     </view>
     <!-- #ifdef H5 -->
     <up-search
@@ -47,6 +47,14 @@ function iconMap(key) {
   return customIconsMap.get(key)
 }
 
+function handleScan() {
+  uni.scanCode({
+    onlyFromCamera: true,
+    success: function (res) {
+      emits('scanResult', res.result)
+    }
+  })
+}
 function handleInputSearch(e) {
   emits('deviceId', e)
 }