out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F)); out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F)); out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F)); } else { out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F)); out += String.fromChar...
base64 web前端js解码与转码 转载: https://blog.csdn.net/xieamy/article/details/78846732 编码,就是将字符串转化成base64 1 2 3 4 functionb64EncodeUnicode(str) { returnbtoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g,function(match, p1) { returnString.fromCharCode('0x'+ p1); }...
NSData *data = [string dataUsingEncoding:NSUTF8StringEncoding]; //获取编码后的 String //NSString *stringBase64 = [data base64Encoding]; // base64格式的字符串(不建议使用,用下面方法替代) NSString *stringBase64 = [data base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed]; /...
Base64编码应运而生,Base64就是一种基于64个可打印字符来表示二进制数据的表示方法。<a name="tvMMh"></a> Base64编码原理分析参考 https://www.cnblogs.com/luguo3000/p/3940197.html<a name="iZ5Kp"></a> Base64在python中的应用 import base64"""将字符串转换成base64编码"""string = "https:/...
<script src="https://cdn.jsdelivr.net/npm/js-base64@3.7.2/base64.min.js"></script> 3 base64加密/解密案例 加密、解密具体方法如下案例所示 代码语言:javascript 代码运行次数:0 运行 AI代码解释 letnick="有勇气的牛排good"// 显式扩展Base64.extendString();// 加密console.log(nick.toBase64(...
base64: the result will be a string, the binary in a base64 form. binarystring (or string, deprecated): the result will be a string in “binary” form, using 1 byte per char (2 bytes). array: the result will be an Array of bytes (numbers between 0 and 255) containing the zip....
//编码newBuffer(String).toString('base64');//解码newBuffer(base64Str,'base64').toString(); ②十六进制Hex //编码newBuffer(String,'base64').toString('hex');//解码newBuffer(base64Str,'hex').toString('utf8'); ③图片 constfs=require('fs');//编码functionbase64_encode(file){letbitmap=...
"Base64Decode;Ansi& quot; 调用实例 string ls_filename,ls_ret long num blob lb_file blob{10000000} lb_ret//初始化足够大的空间, ls_filename="K:\\\照片0034_001_001.jpg"//要编码的图片完整路径名 ls_ret=space(10000000)//初始化足够大的空间接受返回的编码 num=GetFileEncode64(ls_filename,...
Base64EncodeBase64DecodeEscape : HTML特殊字符转义UnEscapeencodeURIComponentdecodeURIComponent3、Date accessLogDatelogDateYYYYMMDDHHmmssSSSYYYYMMDDHHmmssYYYYMMDDtimestamp4、Number isSafeNumberStringtoSafeNumberrandom5、Map MapLog6、String splitreplace7、JSON strictJSONparsereadJSONSync 工具类Util 一个小工具类：...
public String saveImage(String image,HttpServletRequest req) { //接受base64码 String result="success"; String path="d:/"+Math.random()*100+".jpeg"; //使用相对路径或绝对路径 if (image == null) { return result; } BASE64Decoder decoder = new BASE64Decoder(); ...