VUE批量下载图片打包成zip下载

 import JSZip from 'jszip';
import { saveAs } from 'file-saver';
downloadImages() {var zip = new JSZip();// 创建images文件夹//imageUrls=['本地路径','或者网络路径'];var imgFolder = zip.folder("images");let flag = 0 //  判断加载了几张图片的标识for (let i = 0; i < imageUrls.length; i++) {//遍历图片  imageUrlsthis.getBase64(imageUrls[i]).then(base64 => {  //调用getBase64()方法,传入图片网络地址得到base64数据base64 = base64.split('base64,')[1]imgFolder.file(`image${i}.png`, base64, { base64: true })//自定义图片名字，存进images文件夹里面if (flag === this.imageUrls.length - 1) {zip.generateAsync({ type: "blob" }).then((blob) => {saveAs(blob, "xxxxxx.zip")//自定义文件压缩包名字})}flag++});}
},//传入图片地址，返回base64格式数据
getBase64(img) {var image = new Image();image.crossOrigin = '*';//解决图片跨域问题  //解决不了image.src = img;return new Promise((resolve, reject) => {image.onload = () => {resolve(this.getBase64Image(image));}})
},//创建画布，将图片渲染到画布上，再将画布转为base64格式数据返回出来
getBase64Image(img, width, height) {var canvas = document.createElement("canvas");canvas.width = width ? width : img.width;canvas.height = height ? height : img.height;var ctx = canvas.getContext("2d");ctx.drawImage(img, 0, 0, canvas.width, canvas.height);var dataURL = canvas.toDataURL();return dataURL;
},