/*** string转为base64*/function stringToBase64(str) {return new Buffer.from(str).toString("base64");}/*** base64转字符串*/function base64ToString(b64) {return new Buffer.from(b64, "base64").toString();} 示例 // 转为base64var str1 = "aaabbbccc";console.log(stringToBase64(str1)...
NodeJS v.0.0.x 到 v.6.x.x 版本,可以使用如下的转换代码 function stringToBase64(str){ var base64Str = new Buffer(str).toString('base64'); return base64Str; } function base64ToString(base64Str){ var str = new Buffer(base64Str,'base64').toString(); return str; } 1. 2. 3. 4...
/** * base64转字符串 */ function base64ToString(b64) { return new Buffer.from(b64, "base64").toString(); } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 示例 // 转为base64 var str1 = "aaabbbccc"; console.log(stringToBase64(str1)); // base64反解析为字符串 var ...
constbinaryData =Buffer.from('Hello, Base64 Encoding!','utf-8');constbase64String = binaryData.toString('base64');console.log(base64String); Base64 解码 使用Buffer.from()方法,将 Base64 编码的字符串解码为二进制数据: constbase64String ='SGVsbG8sIEJhc2U2NCBFbmNvZGluZyE=';constbinaryData ...
}//function to create file from base64 encoded stringfunctionbase64_decode(base64str, file) {//create buffer object from base64 encoded string, it is important to tell the constructor that the string is base64 encodedvarbitmap =newBuffer.from(base64str, 'base64');//write buffer to file...
string function base64_decode(base64str, file) { <br>// create buffer object from base64 encoded string, it is important to tell the constructor that the string is base64 encoded var bitmap = new Buffer(base64str, 'base64'); <br>// write buffer to file fs.writeFileSync(file, bit...
在Node.js中将base64视频写入文件可以通过以下步骤实现: 1. 首先,将base64视频数据解码为二进制数据。可以使用Node.js内置的`Buffer`对象来完成解码。使用`Buffer...
定义一个函数,用于将base64字符串写入文件。函数接受两个参数:base64字符串和目标文件路径。 代码语言:txt 复制 function writeBase64ToFile(base64String, filePath) { // 将base64字符串转换为Buffer对象 const buffer = Buffer.from(base64String, 'base64'); // 使用fs模块将Buffer对象写入文件 fs.writeFil...
waitKey(); // load base64 encoded image const base64text='data:image/png;base64,R0lGO..';//Base64 encoded string const base64data =base64text.replace('data:image/jpeg;base64','') .replace('data:image/png;base64','');//Strip image type prefix const buffer = Buffer.from(base64...
package lm;message helloworld{ required int32 id = 1; // ID required string str = 2; // str optional int32 opt = 3; //optional field} 一个比较好的习惯是认真对待 proto 文件的文件名。比如将命名规则定于如下：packageName.MessageName.proto 在上例中，package 名字叫做...