JavaScript:重试异步readFile()函数

const fs = require('fs');

function retryReadFile(filePath, retries, callback) {
  fs.readFile(filePath, (err, data) => {
    if (err) {
      if (retries > 0) {
        console.log(`Error reading file: ${err.message}. Retrying...`);
        retryReadFile(filePath, retries - 1, callback);
      } else {
        console.log(`Exceeded maximum retries. Error: ${err.message}`);
        callback(err, null);
      }
    } else {
      console.log(`File read successfully. Contents: ${data}`);
      callback(null, data);
    }
  });
}

retryReadFile('path/to/file.txt', 3, (err, data) => {
  if (err) {
    // 处理错误
  } else {
    // 处理文件内容
  }
});