js 图片base64转file文件的两种方式
js 图片base64转file文件的两种方式
https://blog.csdn.net/yin13037173186/article/details/83302628
//将base64转换为blob dataURLtoBlob: function(dataurl) { var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1], bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n); while (n--) { u8arr[n] = bstr.charCodeAt(n); } return new Blob([u8arr], { type: mime }); }, //将blob转换为file blobToFile: function(theBlob, fileName){ theBlob.lastModifiedDate = new Date(); theBlob.name = fileName; return theBlob; }, //调用 var blob = dataURLtoBlob(base64Data); var file = blobToFile(blob, imgName);