点击全选按钮

src/pages/cart/cart.vue

@@ -15,7 +15,7 @@
 
     <!-- 底部结算栏 -->
     <view class="bottom">
-      <radio :checked="selectAll" color="#E03440" class="select_btn" />
+      <radio @tap="selectAllChange" :checked="selectAll" color="#E03440" class="select_btn" />
       <text class="select_text">全选</text>
       <text class="total_text">合计：</text>
       <text class="price">{{totalPrice}}</text>
@@ -64,6 +64,11 @@ export default {
             return
           }
           this.cartList[index].goods_count += num
+      },
+      // 更改全选状态
+      selectAllChange(){
+          let temp = !this.selectAll
+          this.cartList.forEach(item=>item.goods_select = temp)
       }
   },
   //深度监听