修改返回

components/sh-custom-nav/sh-custom-nav.vue

+<template>
+	<view class="back">
+		<view class="lf" @click="goback">
+			返回
+		</view>
+		<view class="title">{{info.title}}</view>
+	</view>
+</template>
+<script>
+	export default {
+		props:{
+			info:{
+			  type: Object
+			}
+		},
+		data() {
+			return {
+				
+			}
+		},
+		methods:{
+			goback(){
+				uni.navigateTo({
+					url: '/pages/h5/index'
+				})
+			}
+		}
+	}
+</script>
+
+<style lang="scss" scoped>
+.back{
+	 position: fixed;width:100%;margin-top:50rpx;position: relative;    margin-top: 26px; height: 80px;line-height: 80px; 
+	 .lf{
+		position: absolute;width: 40px;text-align: center;padding-left:10rpx;
+	 }
+	 .title{
+		 width: 100%;text-align:center
+	}
+}
+</style>
\ No newline at end of file

pages/h5/pay.vue

 <template>
 	<view>
-		
-		<view style="position: fixed;width:100%;margin-top:50rpx;position: relative;">
-			<view style="position: absolute;width: 40px;text-align: center" @click="goback"> 返回 </view>
-			<view style="width: 100%;text-align:center">自定义头部</view>
-		  </view>
-				
+		<sh-custom-nav :info="info" ></sh-custom-nav>
 		<view class="pay-container" v-if="!isPay">
 			<view class="money-box">￥<text class="money">{{actuallyPay}}</text></view>
 			<u-button  @click="pay" shape="circle" type="primary" text="确认支付" color="#61b077"></u-button>
@@ -30,8 +25,11 @@
 </template>
 <script>
 	import http from '@/shopro/request/index';
-	import Coupons from '@/components/sh-empty/sh-empty'
+	import shCustomNav from '@/components/sh-custom-nav/sh-custom-nav';
 	export default {
+		components:{
+			shCustomNav
+		},
 		data() {
 			return {
 				params:{},
@@ -39,7 +37,10 @@
 				payStatus:'pending',
 				payTips:"等待中",
 				orderId:"",
-				isPay:false
+				isPay:false,
+				info:{
+					title:'支付'
+				}
 			}
 		},
 		methods: {
@@ -91,16 +92,16 @@
 			    // wx.navigateBack({
 			    //   delta: pages.length-2
 			    // })
-				uni.navigateTo({
-					url: '/pages/h5/index'
-				})
+					uni.navigateTo({ 
+						url: '/pages/h5/index'
+					})
 			  }
 		},
 		onLoad(option){
-			let {data,orderId,actuallyPay} = option;
-			this.actuallyPay = actuallyPay;
-			this.orderId = orderId;
-			this.params = JSON.parse(decodeURIComponent(data));
+			// let {data,orderId,actuallyPay} = option;
+			// this.actuallyPay = actuallyPay;
+			// this.orderId = orderId;
+			// this.params = JSON.parse(decodeURIComponent(data));
 		}
 	}