refactor(ImagePicker): 将 == 修改为 ===

Author: juzi214032

src/image-picker/index.wxml

@@ -5,17 +5,17 @@
       <view class="close" data-index="{{ index }}" catchtap="onDelTap">
         <l-icon name="close" color="#fff" size="22" l-self-class="close-icon" />
       </view>
-      <image class="{{size == 3? 'img': 'min-img'}}" mode="{{ mode }}" src="{{newOrOld=='old'? item:item.url }}" />
+      <image class="{{size === 3? 'img': 'min-img'}}" mode="{{ mode }}" src="{{newOrOld==='old'? item:item.url }}" />
     </view>
   </l-grid-item>
   <!-- add 按钮 -->
   <l-grid-item wx:if="{{ showBtn }}">
     <!-- 自定义图片选择按钮 -->
-    <view class="item l-item-class {{size == 3? 'img': 'min-img'}}" catchtap="onAddTap" wx:if="{{ custom }}">
+    <view class="item l-item-class {{size === 3? 'img': 'min-img'}}" catchtap="onAddTap" wx:if="{{ custom }}">
       <slot></slot>
     </view>
-    <view class="item l-item-class {{size == 3? 'img': 'min-img'}}" catchtap="onAddTap" wx:else>
+    <view class="item l-item-class {{size === 3? 'img': 'min-img'}}" catchtap="onAddTap" wx:else>
       <image class="add-icon" src="./image/add.png" />
     </view>
   </l-grid-item>
-</l-grid>
+</l-grid>