From 9acd3887f1f8db40d59f991b1726a61aa7c7637c Mon Sep 17 00:00:00 2001
From: wxr <464027401@qq.com>
Date: 星期三, 12 五月 2021 15:13:56 +0800
Subject: [PATCH] Merge branch 'CJL' into wxr4

---
 HDL_ON/UI/UI2/2-Classification/FunctionControlZoneBLL.cs |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/HDL_ON/UI/UI2/2-Classification/FunctionControlZoneBLL.cs b/HDL_ON/UI/UI2/2-Classification/FunctionControlZoneBLL.cs
index 7d61094..4791f34 100644
--- a/HDL_ON/UI/UI2/2-Classification/FunctionControlZoneBLL.cs
+++ b/HDL_ON/UI/UI2/2-Classification/FunctionControlZoneBLL.cs
@@ -293,6 +293,8 @@
         /// <param name="curtain"></param>
         void LoadEvent_ControlMusic(Button btnPlay,Button btnNext,Button btnPrev, A31MusicModel a31player) 
         {
+            if (a31player == null)
+                return;
             ///涓婁竴鏇茬偣鍑讳簨浠�
             btnPrev.MouseDownEventHandler = (sender, e) =>
             {

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