golang替换字符串中的图片链接，如何提升性能呢？

给定字符串 ``` content="<span class=""><img class="wscnph" src="https://static.images.net/202233142551646287375.jpg"><img class="wscnph" src="https://static.images.net/202233142551646287377.jpg"></span>" ``` 使用正则匹配图片链接，然后上传图片到阿里云oss,获得图片的链接，然后替换字符串中图片的链接，如果给定的字符串中图片很多，怎样才能提高图片上传替换的速度 ``` func Upload(url string) string { // 创建OSSClient实例。 client, err := oss.New(Endpoint, key, AccessKeySecret) if err != nil { fmt.Println("Error:", err) os.Exit(-1) } t1 := time.Now().Unix() if ti1 != t1 { //如果时间戳不一样,那么归零 long = 0 } ti1 = t1 long++ obj := fmt.Sprintf("article/%d%d.png", t1, long) // 获取存储空间。 bucket, err := client.Bucket(BucketName) if err != nil { fmt.Println("Error:", err) os.Exit(-1) } // 上传Byte数组。 err = bucket.PutObject(obj, bytes.NewReader(ReadImgData(url))) if err != nil { fmt.Println("Error:", err) os.Exit(-1) } return "https://" + BucketName + "." + Endpoint + "/" + obj } func RepImages(htmls string) string { var imgRE = regexp.MustCompile(`<img[^>]+\bsrc=["']([^"']+)["']`) imgs := imgRE.FindAllStringSubmatch(htmls, -1) out := make([]string, len(imgs)) myImage := "" resHtml := htmls for i := range out { if ! strings.HasPrefix(imgs[i][1], "https://static.images.net") { myImage = Upload(imgs[i][1]) resHtml = strings.Replace(resHtml, imgs[i][1], myImage, -1) out[i] = imgs[i][1] fmt.Println(strconv.Itoa(i), out[i]) } } fmt.Println(resHtml) return resHtml } func main() { //a := BcryptHash("admin123$") //fmt.Print(a) content := "<span class=\"\"><img class=\"wscnph\" src=\"https://static.images.net/2022331359421646287182.jpg\"><img class=\"wscnph\" src=\"https://static.images.net/202233135942164628718777.jpg\"></span>" RepImages(content) } ```