Promise重试，直到Typescript成功/失败

async function retry<T>(fn: () => Promise<T>, retries = 3, delay = 1000): Promise<T> {
    try {
        return await fn();
    } catch (error) {
        if (retries === 0) {
            throw error;
        }
        await new Promise(resolve => setTimeout(resolve, delay));
        return retry(fn, retries - 1, delay);
    }
}

// 示例使用
async function fetchData() {
    const response = await fetch('https://api.example.com/data');
    if (!response.ok) {
        throw new Error('Network response was not ok');
    }
    return response.json();
}

retry(fetchData)
    .then(data => console.log(data))
    .catch(error => console.error('Failed after retries:', error));