From 84b4889def8ab891ef963a3cdf10108b8318918a Mon Sep 17 00:00:00 2001
From: Mrs4s <1844812067@qq.com>
Date: Sun, 25 Oct 2020 22:06:03 +0800
Subject: [PATCH] fix issue of sending the empty message.

---
 coolq/bot.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/coolq/bot.go b/coolq/bot.go
index 0483d57..b71163d 100644
--- a/coolq/bot.go
+++ b/coolq/bot.go
@@ -211,6 +211,10 @@ func (bot *CQBot) SendGroupMessage(groupId int64, m *message.SendingMessage) int
 		}
 		newElem = append(newElem, elem)
 	}
+	if len(newElem) == 0 {
+		log.Warnf("群消息发送失败: 消息为空.")
+		return -1
+	}
 	m.Elements = newElem
 	ret := bot.Client.SendGroupMessage(groupId, m, ForceFragmented)
 	if ret == nil || ret.Id == -1 {