pages/shopping/shopping.js

@@ -8,13 +8,15 @@ Page({
     data: {
         list:[],
         select:[],
-        userid:0
+        userid:0,
+        price:"0.00"
     },
     sel(a){
         console.log(a)
         this.setData({
             [`select[${a.detail.index}]`]:!a.detail.select
         })
+        this.num();
     },
 
     /**
@@ -98,8 +100,52 @@ Page({
 
     },
     num(){
+        let num = 0;
+        let sel = 0;
         for(let i in this.data.select){
+            console.log(i)
+            if(this.data.select[i]){
+             num += parseFloat(this.data.list[i].goods_price)*100
+             sel++
+            }
+        }
+        if(sel == this.data.list.length){
+            this.setData({
+                all:true
+            })
+        }else{
+            this.setData({
+                all:false
+            })
+        }
+        this.setData({
+            price:num/100
+        })
+    },
+    call(){
+        let sel = 0;
+        let select = []
+        for(let i in this.data.list){
+            console.log(i)
+            if(this.data.select[i]){
+            //  num += parseFloat(this.data.list[i].goods_price)*100
+             sel++
+            }else{
+                select[i] = true
+            }
+        }
+        if(sel == this.data.list.length){
+            this.setData({
+                all:false,
+                select:[]
+            })
+        }else{
+            this.setData({
+                all:true,
+                select
+            })
+        }
+        this.num()
 
     }
-    }
 })

pages/shopping/shopping.wxml

@@ -13,9 +13,9 @@
    </view> -->
    <view class="bottom">
       <view class="left">
-         <view class="select"></view>
-         <text class="selectall">全选</text>
-         <text class="pri">$0.00</text>
+         <view bind:tap="call" class="select {{all ? 'selects':''}}"></view>
+         <text bind:tap="call" class="selectall">全选</text>
+         <text class="pri">${{price}}</text>
       </view>
       <view class="right">
          <text class="del">删除</text>

pages/shopping/shopping.wxss

@@ -1,13 +1,13 @@
-.shopping{
+.shopping {
   padding-bottom: 128rpx;
 }
 .item {
   height: 186rpx;
   margin-left: 46rpx;
   margin-top: 59rpx;
-    }
+}
 
-    .bottom {
+.bottom {
   width: 100%;
   height: 98rpx;
   position: fixed;
@@ -17,14 +17,14 @@
   justify-content: space-between;
   font-size: 28rpx;
   line-height: 98rpx;
-    }
+}
 
-    .left {
+.left {
   display: flex;
   /* line-height: 26rpx; */
-    }
+}
 
-    .select {
+.select {
   width: 26rpx;
   height: 26rpx;
   background: rgba(234, 234, 234, 1);
@@ -32,20 +32,23 @@
   margin: auto 0;
   margin-left: 46rpx;
   margin-right: 24rpx;
-    }
+}
+.selects{
+    background-color: #4cc97d;
+}
 
-    .pri {
-        color: #E0C79D;
+.pri {
+  color: #e0c79d;
   font-size: 26rpx;
   margin-left: 19rpx;
-    }
+}
 
-    .right {
-        color: #BBBBBB;
+.right {
+  color: #bbbbbb;
   margin-right: 31rpx;
-    }
+}
 
-    .sub {
+.sub {
   margin-left: 30rpx;
-        color: #4CC97D;
-    }
+  color: #4cc97d;
+}