import os

# 重命名文件
old_name = "old_file.txt"
new_name = "new_file.txt"

try:
    os.rename(old_name, new_name)
    print(f"文件已从 {old_name} 重命名为 {new_name}")
except FileNotFoundError:
    print("原文件不存在")
except FileExistsError:
    print("目标文件名已存在")

<form action="/upload" method="post" enctype="multipart/form-data">
  <input type="file" name="fileToUpload">
  <input type="submit" value="上传文件">
</form>

const fileInput = document.querySelector('input[type="file"]');
const formData = new FormData();
formData.append('file', fileInput.files[0]);

fetch('/upload', {
  method: 'POST',
  body: formData
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));

// 将文件分割为多个块并逐个上传
async function uploadInChunks(file, chunkSize = 5 * 1024 * 1024) {
  const totalChunks = Math.ceil(file.size / chunkSize);
  
  for (let i = 0; i < totalChunks; i++) {
    const chunk = file.slice(i * chunkSize, (i + 1) * chunkSize);
    const formData = new FormData();
    formData.append('file', chunk);
    formData.append('chunkIndex', i);
    formData.append('totalChunks', totalChunks);
    formData.append('fileId', file.name + '-' + file.size);
    
    await fetch('/upload-chunk', {
      method: 'POST',
      body: formData
    });
  }
  
  // 通知服务器合并所有分片
  await fetch('/merge-chunks', {
    method: 'POST',
    body: JSON.stringify({
      fileId: file.name + '-' + file.size,
      fileName: file.name
    }),
    headers: {
      'Content-Type': 'application/json'
    }
  });
}