是指在使用Decodebase64类的initWithBase64EncodedString方法对Base64编码的字符串进行解码时,返回了空值(nil)。Base64是一种用于将二进制数据转换为可打印字符的编码方式,常用于在网络传输中传递二进制数据。Decodebase64类是一个用于解码Base64编码的字符串的工具类。 当调用Decode
In the input string, any characters not in the set of 65 characters defined for base 64 encoding are ignored. Decoding stops at the end of the string or at the first occurrence of an equal sign character (=). If you know that the encoded data was a character string, you can convert ...
Decode Base-64 String Write a JavaScript program to decode a string of data encoded using base-64 encoding. Note: Create a Buffer for the given string with base-64 encoding and use Buffer.toString('binary') to return the decoded string. Create a Buffer for the given string with base-64...
finalBase64.Decoderdecoder=Base64.getDecoder();finalBase64.Encoderencoder=Base64.getEncoder();finalStringtext="字串文字";finalbyte[] textByte = text.getBytes("UTF-8");//编码finalStringencodedText=encoder.encodeToString(textByte); System.out.println(encodedText);//解码System.out.println(newString...
This tool converts a base64-encoded string back to a human-readable string. In base64 encoding, every 4 symbols get converted to 3 human-readable characters. This makes base64 a very ineffective encoding as it uses one third more memory to store the encoded data. This utility also supports...
BASE64_DECODE ( expression ) Arguments expression An expression of type varchar(n) or varchar(max). Return types varbinary(8000) if the input is varchar(n). varbinary(max) if the input is varchar(max). If the input expression is NULL, the output is NULL. Remarks The encoded string's...
In the input string, any characters not in the set of 65 characters defined for base 64 encoding are ignored. Decoding stops at the end of the string or at the first occurrence of an equal sign character (=). If you know that the encoded data was a character string, you can convert ...
/// </summary> public InfoPathAttachmentDecoder(string theBase64EncodedString) { byte [] theData = Convert.FromBase64String(theBase64EncodedString); using(MemoryStream ms = new MemoryStream(theData)) { BinaryReader theReader = new BinaryReader(ms); DecodeAtt...
Decode a string of data which has been encoded using Base64 encoding.Installation npm install @stdlib/string-base-atob Alternatively, To load the package in a website via a script tag without installation and bundlers, use the ES Module available on the esm branch (see README). If you ...
Base64.Decode Method Reference Feedback Definition Namespace: Android.Util Assembly: Mono.Android.dll Overloads 展开表 Decode(Byte[], Base64Flags) Decode the Base64-encoded data in input and return the data in a new byte array. Decode(String, Base64Flags) ...