处理链接为默认值的问题

utils/replace.go

@@ -9,3 +9,11 @@ import (
 func RemoveOssDomain(url string) string {
 	return strings.Replace(url, config.C.Oss.OssCustomDomainName, "", 1)
 }
+
+// AddOssDomain 去除oss地址中的前缀
+func AddOssDomain(url string) string {
+	if url == "" {
+		return ""
+	}
+	return config.C.Oss.OssCustomDomainName + url
+}