修改

pages/ProductList/ProductList.vue

@@ -31,6 +31,7 @@
 				暂无商品
 			</view>
 		</view>
+		<u-back-top :scroll-top="scrollTop"></u-back-top>
 	</view>
 </template>
 
@@ -59,6 +60,7 @@
 				goodsName: '',
 				GoodsCategorychildrenlist: [], //子分类list
 				GoodsCategorychildrenid: null,
+				scrollTop: 0,
 			};
 		},
 		watch: { //监听
@@ -96,6 +98,9 @@
 			this.GoodsCategorychildren(this.goodsCategoryId);
 		},
 		methods: {
+			onPageScroll(e) {
+				this.scrollTop = e.scrollTop;
+			},
 			//点击导航栏标签改变当前索引
 			toggleTab(index) {
 				if (index == 1111111111111) {

pages/classification/classification.vue

@@ -15,7 +15,7 @@
 				</view>
 			</scroll-view>
 		</view>
-		<view class="" style="display: inline-block;width: 80%;padding-top: 20rpx;position: absolute;right: 0%;">
+		<view class="" style="display: inline-block;width: 80%;position: absolute;right: 0%;">
 			<view class="productlist" v-if='goodsList.length>0'>
 				<view class="item" @tap='goCommodityDetails(item)' v-for="(item,index) in goodsList" :key="index">
 					<image :src="baseurl+item.goodsPictureUrl" mode=""></image>
@@ -39,6 +39,7 @@
 				</view>
 			</view>
 		</view>
+		<u-back-top :scroll-top="scrollTop2"></u-back-top>
 	</view>
 </template>
 
@@ -54,7 +55,7 @@
 				//将选中标签的索引绑定为tabIndex，以便后续的调用
 				baseurl: '',
 				pageNum: 1,
-				pageSize: 20,
+				pageSize: 10,
 				goodsCategoryId: '', //请求值
 				goodsList: [], //商品列表list
 				total: 0, //list总长度
@@ -63,6 +64,7 @@
 				GoodsCategorychildrenlist: [], //子分类list
 				GoodsCategorychildrenid: null,
 				scrollTop: 0,
+				scrollTop2: 0,
 				old: {
 					scrollTop: 0
 				}
@@ -101,6 +103,9 @@
 			this.GoodsCategorychildren(this.goodsCategoryId);
 		},
 		methods: {
+			onPageScroll(e) {
+				this.scrollTop2 = e.scrollTop;
+			},
 			tapscroll(item, index) {
 				this.tabIndex = index
 				if (index == 0) {
@@ -218,6 +223,7 @@
 		height: 100%;
 
 		.inputs {
+			position: fixed;
 			box-shadow: 0rpx 9rpx 31rpx 9rpx rgba(0, 0, 0, 0.03);
 			border: 1px solid #f0f0f0;
 			width: 90%;
@@ -254,8 +260,9 @@
 		.lefttabbar {
 			position: fixed;
 			width: 20%;
-			height: 100%;
 			display: inline-block;
+			height: 100%;
+			top: 100rpx;
 
 			.scroll-Y {
 				height: 100%;
@@ -303,7 +310,7 @@
 
 		.productlist {
 			width: 100%;
-			margin: 0 auto;
+			margin: 120rpx auto 0;
 			display: flex;
 			flex-wrap: wrap;
 			justify-content: space-evenly;