uniapp canvas 生成海报并保存到本地
最终生成的样式
注释已经打好，详情看代码
class="canvas-box">
class="nav-box">
class="title-top" :style="'padding-top:' + statusBarHeight + 'rpx'">
class="title-icon" name="arrow-left" color="#ffffff" size="36" @click="getBack">
海报分享
"imgUrl" mode="">
class="footer">
class="download" @click="saveImage">
"download" color="#ffffff" size="34">
保存到相册