下面是一个简单的示例实现，并未包含对异常情况的处理、超时设置等较复杂的功能：

复制
1function fetchWithRetry(url, options, maxRetry = 3) {
2  return new Promise((resolve, reject) => {
3    const doFetch = async (attempt) => {
4      try {
5        const response = await fetch(url, options);
6        if (response.ok) {
7          resolve(response);
8        } else {
9          throw new Error('Request failed');
10        }
11      } catch (error) {
12        if (attempt < maxRetry) {
13          console.log(`Attempt ${attempt + 1} failed. Retrying...`);
14          doFetch(attempt + 1);
15        } else {
16          reject(new Error('Max retries exceeded'));
17        }
18      }
19    };
20
21    doFetch(0);
22  });
23}