建立工程，成功创建两个虚拟串口

source/rt_thread/components/finsh/msh.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2013-03-30     Bernard      the first verion for FinSH
+ */
+
+#ifndef __M_SHELL__
+#define __M_SHELL__
+
+#include <rtthread.h>
+
+rt_bool_t msh_is_used(void);
+int msh_exec(char *cmd, rt_size_t length);
+void msh_auto_complete(char *prefix);
+
+int msh_exec_module(const char *cmd_line, int size);
+int msh_exec_script(const char *cmd_line, int size);
+
+#endif