初始化

yunbainian/etms_wechat_mini/components/badge/badge.js

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+
+
+Component({
+  options: {
+    addGlobalClass: true
+  },
+  properties: {
+    extClass: {
+      type: String,
+      value: ''
+    },
+    content: {
+      type: String,
+      value: ''
+    }
+  }
+})

yunbainian/etms_wechat_mini/components/badge/badge.json

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+{
+    "component": true,
+    "usingComponents": {}
+}

yunbainian/etms_wechat_mini/components/badge/badge.wxml

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+<view class="weui-badge {{extClass}} {{!content ? 'weui-badge_dot' : ''}}">{{content}}</view>

yunbainian/etms_wechat_mini/components/badge/badge.wxss

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+.weui-badge{display:inline-block;padding:.15em .4em;min-width:8px;border-radius:18px;background-color:#FA5151;color:#FFFFFF;line-height:1.2;text-align:center;font-size:12px;vertical-align:middle}.weui-badge_dot{padding:.4em;min-width:0}