refactor: platform 环境

src/pages/index/about.vue

@@ -22,7 +22,7 @@
 
     <view class="text-center py-4">
       当前平台是：
-      <text class="text-red-500">{{ platform }}</text>
+      <text class="text-red-500">{{ PLATFORM.platform }}</text>
     </view>
     <view class="desc">测试设计稿样式</view>
     <view class="desc">设计稿是750px，css里面全部写rpx 即可</view>
@@ -30,14 +30,12 @@
 </template>
 
 <script lang="ts" setup>
+import PLATFORM from '@/utils/platform'
+
 // 获取屏幕边界到安全区域距离
 const { safeAreaInsets } = uni.getSystemInfoSync()
 
-const platform = __UNI_PLATFORM__
-const isH5 = __UNI_PLATFORM__ === 'h5'
-const isApp = __UNI_PLATFORM__ === 'app'
-const isMp = __UNI_PLATFORM__.startsWith('mp-')
-console.log(platform, isH5, isApp, isMp)
+console.log(PLATFORM)
 </script>
 
 <style lang="scss" scoped>