GUI设计模式下,右键单击pushbutton1按钮,在popup-menu中选择Property Inspector,显示按钮属性窗口,在属性窗口中单击callback属性旁边的按钮,进入m文件中编辑 按下pushbutton1按钮时的响应代码,在此可打开串口进行串口读写操作,示例:s = serial('COM1','baudrate',4800);fopen(s)fprintf(s,'*IDN?')idn = fscanf(s);fclose(s)