diancan/components/header/index.wxml

<!--index.wxml-->
<van-icon name="arrow-left" color="#333333" size="26" class="huitui" wx:if="{{ showBack }}" style="top:{{ customCenter }}px" bind:tap="goback"/>
<view class="header_wrap" style="height:{{ setBgHeight}}px;background:{{ bgColor }}" wx:if="{{ showHeader }}">
	<view class="bg">
		<view class="bg_xinxi" style="top:{{ customCenter }}px">
			<!-- <van-icon name="arrow-left" color="#333333" size="26" class="huitui" wx:if="{{ showBack }}" bind:tap="goback"/> -->
			<text class="sub_title">{{ pageTitle }}</text>
		</view>
	</view>
</view>