dummyData= dummyData.PadRight(dummyData.Length +4- dummyData.Length %4,'=');byte[] imageBytes =Convert.FromBase64String(dummyData); System.IO.MemoryStream MfileStream=newSystem.IO.MemoryStream(imageBytes);stringfpath =@"C:\Users\anywell\Desktop\下载的啊\"+ DateTime.Now.ToString("yyMMddhh...
1 首先需要具备的东西是，一个 html文件 和 将要转换的图片。2 打开html文件，编写代码。首先 定义变量存放图片的相对路径，convertImgToBase64函数作为转化函数。3 转换函数中通过image加载来数据化。4 调用该函数，并传入url等参数，转化完成后alert出结果。5 运行html，输出转化结果。6 可以看到已经成功转化为base...
var blob_file = b64toBlob(realData, contentType);//Convert to blob //转成二级制原始文件内容returnblob_file; } function b64toBlob(b64Data, contentType, sliceSize) {//base64转成二进制对象函数 //来源文档:https://ourcodeworld.com/articles/read/322/how-to-convert-a-base64-image-into-a-i...
} imgs.src ='data:image/png;base64,'+ base64Data; } else{ //chrome const blobInput = convertBase64ToBlob(base64Data,'image/png'); const clipboardItemInput = new ClipboardItem({'image/png': blobInput }); navigator.clipboard.write([clipboardItemInput]); console.log('success'); } } ...
imgs.src = 'data:image/png;base64,' + base64Data; } else { //chrome const blobInput = convertBase64ToBlob(base64Data, 'image/png'); const clipboardItemInput = new ClipboardItem({ 'image/png': blobInput }); navigator.clipboard.write([clipboardItemInput]); ...
{ imageData: null, // 用于存储Base64编码的图片数据 }; }, methods: { handleFileChange(event) { const file = event.target.files[0]; if (file) { this.convertToBase64(file); } }, convertToBase64(file) { const reader = new FileReader(); reader.onload = (e) => { this.image...
function convertImgToBase64(url, callback, outputFormat){ var canvas = document.createElement('CANVAS'), ctx = canvas.getContext('2d'), img = new Image; img.crossOrigin = 'Anonymous'; img.onload = function(){ canvas.height = img.height; canvas.width = ...
var blob_file = b64toBlob(realData, contentType);// Convert to blob //转成二级制原始文件内容 return blob_file; } function b64toBlob(b64Data, contentType, sliceSize) { //base64转成二进制对象函数 //来源文档:https://ourcodeworld.com/articles/read/322/how-to-convert-a-base64-image-into...
imgs.src = 'data:image/png;base64,' + base64Data; } else { //chrome const blobInput = convertBase64ToBlob(base64Data, 'image/png'); const clipboardItemInput = new ClipboardItem({ 'image/png': blobInput }); navigator.clipboard.write([clipboardItemInput]); ...
js将图片转化为base64 参考地址:http://www.cnblogs.com/mr-wuxiansheng/p/6931077.html var img = "imgurl";//imgurl...就是你的图片路径 function getBase64Image(img) { var can...