$base64 = "/9j/4AAQSkZJRgABAQEAkACQAAD/4QCMRXhpZgAATU0AKgAAAAgABQESAAMAAAABAAEAAAEaAAUAAAABAAAASgEbAAUAAAABAAAAUgEoAAMAAAABAAIAAIdpAAQAAAABAAAAWgAAAAAAAACQAAAAAQAAAJAAAAABAAOgAQADAAAAAQABAACgAgAEAAAAAQAAAHKgAwAEAAAAAQAAAHIAAAAA/9sAQwAfFRcbFxMfGxkbIyE…

1.解析base64数据成图片 The problem is that data:image/bmp;base64, is included in the encoded contents. This will result in invalid image data when the base64 function decodes it. Remove that data in the function before decoding the string, like so. $base64…

1.解析base64数据成图片 The problem is that data:image/bmp;base64, is included in the encoded contents. This will result in invalid image data when the base64 function decodes it. Remove that data in the function before decoding the string, like so. $base64…

在阅读 glTF-Tutorial 教程时遇到了解析 base64 数据的问题. 原始 base64 数据为AAABAAIAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAA=.包含两个数据: 数据1:数据起始位置为 0,长度为 6,数据类型为 UNSIGNED_SHORT:数据2:数据起始位置为 8,长度为 36,数据类型为 FLOAT. 解析代码如下: import base64 import struct origin_data = b'…

前端代码JS: 前端图片为canvsa绘图转base64格式 function putTextInfo() { var canvasImg = painting.canvas.toDataURL('image/png', 0.8).substring(22); // canvas图片.草图 var cName = $("#username").val();//客户姓名 var provinceid = $("#provice").val();//客户地址,省id v…

直接上代码,要点就是把base64转成Blob,添加到FormData传递给后台程序,跟选择图片文件上传时一样的了. var dataurl = canvas.toDataURL('image/png'); //base64图片数据 var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1], bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n); whi…

function dataURLtoFile(dataurl, filename = 'file') { let arr = dataurl.split(',') let mime = arr[0].match(/:(.*?);/)[1] let suffix = mime.split('/')[1] let bstr = atob(arr[1]) let n = bstr.length let u8arr = new Uint8Array(n) while (n--) { u8arr[n] =…

1.我们在看代码时经常在img或css背景图片中看到: src=”data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHgAAAB4CAMAAAAOusbgAAAAeFBMVEUAwAD///+U5ZTc9twOww7G8MYwzDCH4==” src或 url() 中有一大串编码.它把一些 8-bit 数据翻译成标准 ASCII 字符,网上有很多免费的base64 编码和解码的工具, 后面跟的一串代码就相当于链接地址. 2.目前,Data URL sc…

演示效果参考如下:XML转JSON 另一个搭配SQL实现:http://sheetjs.com/sexql/index.html 详细介绍: 1.首先需要导入js <script src="http://oss.sheetjs.com/js-xlsx/xlsx.full.min.js"></script> 2.导入文件框 这里importExcel(this)是方法,名字可以自己定义. <input type="file"onchang…

获取base64文件 $image="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAgAElEQVR4Xuy9B5hlV3Wm/Z58bq6cujpVB3WUWlJ308oERSQMCAVAAkQQYoi2sQcMAzOD5zcG29hjDGYMxhiTDMaYKEAgwMoSKNBqda7uyunmcHL4n32qW0gCLIG6JAR3P0+pq0q39rl37X2+s/Za3/qWJCPHtMdTa…