503

原文：503
译文：503 Service Temporarily Unavailable（503 服务暂时不可用）

🎯 原因分析

💡 解决方案

// 示例：带重试的请求逻辑
async function requestWithRetry(url, maxRetries = 3, delay = 1000) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      const response = await fetch(url);
      if (response.status === 503 && i < maxRetries - 1) {
        await new Promise(resolve => setTimeout(resolve, delay));
        continue;
      }
      return response;
    } catch (error) {
      if (i === maxRetries - 1) throw error;
      await new Promise(resolve => setTimeout(resolve, delay));
    }
  }
}

🛡️ 预防措施