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金壶/appV1/components/HeaderTop/PublicTop.vue

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+<template>
+	<!-- 公共头部  状态栏40upx 带有左边返回键，右边消息图标 -->
+	<view class="b_header bg-linear-gradient x-text-white text-center">
+		{{page_title}}
+		<image src="../../static/my/left.png" mode="" class="goback" @click="back()"></image>
+	</view>
+</template>
+
+<script>
+	import public_function from '../../common/public_function.js' 
+	export default{
+		props:{
+			page_title:String
+		},
+		methods:{
+			back(){
+				let routes = getCurrentPages();
+				let Routes = routes[routes.length - 1].route;
+				if(Routes.indexOf("order/index") >= 1){
+					uni.switchTab({
+						url: '../../pages/my/my'
+					})
+				}else{
+					public_function.goBack();
+				}
+				
+				
+			}
+		}
+	}
+</script>
+
+<style lang="scss">
+	.b_header{  
+		height:148upx;
+		position: fixed;
+		line-height:210upx;
+		width: 100%;
+		z-index: 1000;
+		font-size: 32upx;
+		.goback{
+			position: absolute;
+			bottom:29upx;
+			left:31upx;
+			height:30.9upx;
+			width:18upx;
+		}
+	}
+</style>