diff --git a/loghandler.cpp b/loghandler.cpp
index 26c7950..8435581 100644
--- a/loghandler.cpp
+++ b/loghandler.cpp
@@ -81,6 +81,10 @@ void messageHandler(QtMsgType type, const QMessageLogContext &context, const QSt
 // 给Qt安装消息处理函数
 void LogHandler::installMessageHandler()
 {
+    static bool installFlag = false;
+    if(installFlag)
+        return;
+    installFlag = true;
     //获取日期
     auto _currentDate = QDateTime::currentDateTime().toString("yyyy-MM-dd");
 
diff --git a/loghandler.h b/loghandler.h
index 2e45b14..1296555 100644
--- a/loghandler.h
+++ b/loghandler.h
@@ -15,7 +15,7 @@ public:
     }
 
 private:
-    LogHandler(){};
+    LogHandler() {};
 };
 
 #endif // LOGHANDLER_H