小程序绘制海报总结

<canvas canvas-id="poster-share" class="poster" />

<view bind:tap="handleShare">
	<slot wx:if="{{useSlot}}" />
</view>
<van-popup custom-class="page-van-popup" show="{{ showShare }}" bind:close="shareClose">
	<view class="df fxdc h100v w100v" wx:if="{{showShare}}">
		<view class="df jcc aic fxa posr mt120" bind:tap="shareClose">
			<image class="poster-image" src="{{ tempFilePath }}" mode="aspectFit" />
		</view>
		<view class="fxn h238 bgfff df aic jcc bdrs16t">
			<view class="fxa w0 df aic jcc">
				<view class="df fxdc posr">
					<button class="posa t0 l0 w100p h100p op0" open-type="share" />
					<image class="h108 w108" src="./assets/ic_fenxiang.svg" />
					<text class="mt16 c333 fz28">分享好友</text>
				</view>
			</view>
			<view class="fxa w0 df aic jcc">
				<view class="df fxdc" bind:tap="savePicture">
					<image class="h108 w108" src="./assets/ic_baocun.svg" />
					<text class="mt16 c333 fz28">保存图片</text>
				</view>
			</view>
		</view>
	</view>
</van-popup>