nodejs 读取文件大小

以下是使用Node.js读取文件大小的方法：

const fs = require('fs');
const path = require('path');

// 获取文件大小
function getFileSize(filePath) {
  const stat = fs.statSync(filePath);
  const fileSize = stat.size;
  return fileSize;
}

// 获取文件夹大小
function getFolderSize(folderPath) {
  let folderSize = 0;
  const files = fs.readdirSync(folderPath);
  files.forEach(function(file) {
    const filePath = path.join(folderPath, file);
    const stat = fs.statSync(filePath);
    if (stat.isFile()) {
      folderSize += stat.size;
    } else if (stat.isDirectory()) {
      folderSize += getFolderSize(filePath);
    }
  });
  return folderSize;
}

// 示例
const filePath = 'example.txt';
const folderPath = 'exampleFolder';
console.log(`文件 ${filePath} 的大小为 ${getFileSize(filePath)} 字节`);
console.log(`文件夹 ${folderPath} 的大小为 ${getFolderSize(folderPath)} 字节`);