feat: 支持多次重试下载图片

util/url.go

@@ -38,7 +38,15 @@ func normalizeURL(rawURL string) string {
 
 func DownloadFile(url string, filepath string) error {
 	// 发送 HTTP GET 请求
-	resp, err := http.Get(url)
+	// resp, err := http.Get(url)
+	var resp *http.Response
+	var err error
+	var maxRetry = 5
+	var retry = 0
+	for resp, err = http.Get(url); err != nil && retry < maxRetry; resp, err = http.Get(url) {
+		fmt.Println("下载失败，正在重试...")
+		retry++
+	}
 	if err != nil {
 		return fmt.Errorf("下载失败: %v", err)
 	}