图片转base64

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原创最新推荐文章于 2026-04-20 06:33:16 发布 426 阅读 AI 写同款· GEO 优化 ›

vant上传图片转二进制_土旦：移动端 Vue+Vant 的Uploader 实现：上传、压缩、旋转图片... 面向百度开发html jsdata() {return {files: {name: "",type: ""},headerImage: null,picValue: null,upImgUrl,}},// 组件方法获取流async onRead(file) {// console.log(file);// console.log(file.file);this.files.na... 阅读详情

图片转base64

html:

<img src="img1.png">

js:

 1  //海报转base64
 2                 function getBase64Image(img) {
 3                     var canvas = document.createElement("canvas");
 4                     canvas.width = img.width;
 5                     canvas.height = img.height;
 6                     var ctx = canvas.getContext("2d");
 7                     ctx.drawImage(img, 0, 0, img.width, img.height);
 8                     var ext = img.src.substring(img.src.lastIndexOf(".") + 1).toLowerCase();
 9                     var dataURL = canvas.toDataURL("image/" + ext);
10                     return dataURL;
11                 }
12 
13           var img = $("img").prop("src");
14                 var image = new Image();
15                 image.src = img;
16            var small_base64 = getBase64Image(image);