feat: 完成分类页开发

miniprogram/components3.0/nav-bar/nav-bar.wxml

@@ -2,7 +2,17 @@
     class="nav-bar"
     style="padding-top: {{statusBarHeight}}px; {{background ? 'background:' + background + ';' : ''}}">
     <view class="nav-bar__inner">
+        <view wx:if="{{leftActionType === 'brand'}}" class="nav-bar__brand">
+            <image
+                class="nav-bar__logo"
+                src="/assets/imgs/doodle-logo.png"
+                mode="aspectFill" />
+            <text wx:if="{{showBrandName}}" class="nav-bar__brand-name"
+                >涂鸦丫</text
+            >
+        </view>
         <view
+            wx:else
             class="nav-bar__back {{leftActionType === 'none' ? 'nav-bar__back--hidden' : ''}}"
             bindtap="handleLeftAction">
             <text
@@ -12,7 +22,6 @@
                 wx:elif="{{leftActionType === 'home'}}"
                 class="toy-icon toy-icon-home-o nav-bar__back-icon"></text>
         </view>
-        <slot name="left"></slot>
         <text class="nav-bar__title">{{title}}</text>
         <view class="nav-bar__right">
             <slot name="right"></slot>