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1、安装swiper：npm install swiper vue-awesome-swiper --save2、在vue页面引入import { swiper, swiperSlide } from 'vue-awesome-swiper';import 'swiper/dist/css/swiper.min.css';let activeIndex = 0; //定义swiper当前索引值3、在data里面配置swiper数据data() { return {

1、避免获取不到canvas元素，要使用$nextTick()，下载canvas画好的图片需要用toDataURL()将canvas对象转换为base64位编码，具体代码如下：this.$nextTick(() => { let canvas = document.getElementById('myCanvas'); //获取canvas元素 let ctx = canvas.getContext('2d'); let imgUrl = new Image(); i