更新组件演示页面，方便用户直接使用组件，去除tn-button的默认背景色，tn-avatar修改参数默认值，修复tn-avatar-group最开始头像进行了偏移、修复无法使用标签的bug，tn-badge修改参数默认值，tn-collapse-item修复背景颜色失效问题，滚动通知移除默认背景颜色和字体大小，tn-count-down修复时间单位不正确问题，列表组件修复背景颜色问题，tn-nav-bar返回按钮修改为可进行修改的图标，tn-step添加点击步骤进行跳转，tn-loading修复默认激活颜色出错问题，tn-tag移除默认背景颜色，优化阴影大小css

componentsPage/count-to/count-to.vue

@@ -1,6 +1,6 @@
 <template>
 
-  <view class="components-count_to">
+  <view class="components-count_to tn-safe-area-inset-bottom">
 
     <!-- 顶部自定义导航 -->
     <tn-nav-bar fixed>countTo数字跳转</tn-nav-bar>
@@ -8,16 +8,37 @@
     <!-- 页面内容 -->
     <view :style="{paddingTop: vuex_custom_bar_height + 'px'}">
       
-      <dynamic-demo-template ref="demoTemplate" :tips="tips" :sectionList="sectionList" :full="false" @click="click">
-        <tn-count-to
-          :startVal="startVal"
-          :endVal="endVal"
-          :fontColor="fontColor"
-          :fontSize="fontSize"
-          :decimals="decimals"
-          :bold="bold"
-        ></tn-count-to>
-      </dynamic-demo-template>
+      <demo-title title="基本使用">
+        <view class="tn-flex tn-flex-col-center tn-flex-row-left">
+          <view>
+            <tn-count-to :startVal="0" :endVal="1000"></tn-count-to>
+          </view>
+          <view class="tn-margin-left">
+            <tn-count-to :startVal="100" :endVal="2000"></tn-count-to>
+          </view>
+        </view>
+      </demo-title>
+      
+      <demo-title title="显示小数">
+        <view class="tn-flex tn-flex-col-center tn-flex-row-left">
+          <view>
+            <tn-count-to :startVal="0" :endVal="1000.9" :decimals="1"></tn-count-to>
+          </view>
+          <view class="tn-margin-left">
+            <tn-count-to :startVal="0" :endVal="1000.99" :decimals="2"></tn-count-to>
+          </view>
+        </view>
+      </demo-title>
+      
+      <demo-title title="字体加大加粗显示">
+        <tn-count-to :startVal="0" :endVal="1000" :bold="true" :fontSize="100"></tn-count-to>
+      </demo-title>
+      
+      <demo-title title="自定义字体颜色">
+        <tn-count-to :startVal="0" :endVal="1000" fontColor="#A4E82F"></tn-count-to>
+      </demo-title>
+      
+      <view class="tn-padding-bottom-lg"></view>
 
     </view>
 
@@ -26,85 +47,22 @@
 </template>
 
 <script>
-  import dynamicDemoTemplate from '@/libs/components/dynamic-demo-template.vue'
+  import demoTitle from '@/libs/components/demo-title.vue'
   export default {
     name: 'componentsCountTo',
-    components: {dynamicDemoTemplate},
+    components: {demoTitle},
     data() {
       return {
-        fontColor: '#080808',
-        fontSize: 50,
-        startVal: 0,
-        endVal: 1000,
-        duration: 2000,
-        decimals: 0,
-        bold: false,
-        
-        tips: ['无需依赖额外的样式文件','使用tn-count-to组件'],
-        sectionList: [
-          {
-            name: '参数切换',
-            section: [
-              {
-                title: '滚动范围',
-                optional: ['0-1000','100-2500'],
-                methods: 'valChange'
-              },
-              {
-                title: '小数显示位数',
-                optional: ['不显示','1','2'],
-                methods: 'decimalsChange'
-              },
-              {
-                title: '加粗',
-                optional: ['默认','加粗'],
-                methods: 'boldChange'
-              },
-              {
-                title: '自定义样式',
-                optional: ['默认','自定义'],
-                methods: 'customStyleChange'
-              }
-            ]
-          }
-        ]
       }
     },
     methods: {
-      click(event) {
-        this[event.methods] && this[event.methods](event)
-      },
-      // 切换开始结束值
-      valChange(event) {
-        const value = event.name.split('-')
-        this.startVal = Number(value[0])
-        this.endVal = Number(value[1])
-      },
-      // 切换小数显示
-      decimalsChange(event) {
-        this.decimals = event.index === 0 ? 0 : Number(event.name)
-      },
-      // 切换加粗
-      boldChange(event) {
-        this.bold = event.index === 0 ? false : true
-      },
-      // 切换自定义样式
-      customStyleChange(event) {
-        switch(event.index) {
-          case 0:
-            this.fontColor = '#080808'
-            this.fontSize = 50
-            break
-          case 1:
-            this.fontColor = '#A4E82F'
-            this.fontSize = 100
-            break
-        }
-      },
-    },
+    }
 
   }
 </script>
 
 <style lang="scss" scoped>
+  .components-count_to {
+    min-height: 100vh;
+  }
 </style>