说一下怎么设置超时设置

在编程中设置超时设置是为了确保长时间运行的请求不会阻塞程序进程。以下是几个常见语言中设置超时时间的例子：

### JavaScript (axios库)

axios.get('https://api.example.com/data', {
  timeout: 5000, // 设置默认超时时间为5秒
  cancelToken: new axios.CancelToken(function (c) { /* 取消操作 */ })
})
.catch((error) => {
  if (error instanceof axios.Cancel) {
    console.log('请求已取消');
  } else {
    throw error;
  }
});

### Python (requests库)

import requests
response = requests.get('https://example.com', timeout=5) # 设置超时为5秒
if response.status_code == requests.exceptions.Timeout:
    print('请求超时')

### Java (HttpClient)

CloseableHttpResponse response;
try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
    HttpGet httpget = new HttpGet("http://example.com");
    HttpResponseHandler<String> handler = new BasicResponseHandler();
    response = httpClient.execute(httpget, new DefaultRequestDirector(httpClient, handler), Duration.ofSeconds(5)); // 超时5秒
}
catch (TimeoutException te) {
    System.out.println("请求超时");
}

以上代码展示了如何通过库提供的API设置默认超时时间，并在发生超时时提供相应的异常处理。