Python 简单串口收发GUI界面

       忙活了三个多小时，连学带做，总算是搞出来了一个具有基本功能的串口通信PC机的GUI界面，Tkinter在python中确实很好用，而且代码量确实也很少，不足的是Tkinter不自带combox，但是幸运的是我下载的2.7版本自带了包含有combox的ttk模块，于是乎问题就顺利解决了。下面是源代码，一些错误提示功能还没有做，目前只是简单地实现了下位机与PC的通信界面，下位机还是用的STM32F103

#encoding=utf-8__author__ = 'freedom'from Tkinter import *from serial import *import ttkclass GUI(Frame):    def __init__(self,master):        frame = Frame(master)        frame.pack()        #串口设置相关变量        self.port = 0        self.baudrate = 9600        #串口号提示        self.lab1 = Label(frame,text = 'Serial Number')        self.lab1.grid(row = 0,column = 0,sticky = W)        #串口号选择下拉菜单        self.boxValue = StringVar()        self.boxChoice = ttk.Combobox(frame,textvariable = self.boxValue,state = 'readonly')        self.boxChoice['value'] = ('COM1','COM2','COM3','COM4')        self.boxChoice.current(0)        self.boxChoice.bind('<<ComboboxSelected>>',self.Choice)        self.boxChoice.grid(row = 1,column = 0,sticky = W)        #波特率选择提示        self.lab2 = Label(frame,text = 'Baudrate Set')        self.lab2.grid(row = 2,column = 0,sticky = W)        #波特率选择下拉菜单        self.boxValueBaudrate = IntVar()        self.BaudrateChoice = ttk.Combobox(frame,textvariable = self.boxValueBaudrate,state = 'readonly')        self.BaudrateChoice['value'] = (9600,115200)        self.BaudrateChoice.current(0)        self.BaudrateChoice.bind('<<ComboboxSelected>>',self.ChoiceBaudrate)        self.BaudrateChoice.grid(row = 3,column = 0,sticky = W)        #输出框提示        self.lab3 = Label(frame,text = 'Message Show')        self.lab3.grid(row = 0,column = 1,sticky = W)        #输出框        self.show = Text(frame,width = 40,height = 5,wrap = WORD)        self.show.grid(row = 1,column = 1,rowspan = 4,sticky = W)        #输入框提示        self.lab4 = Label(frame,text = 'Input here,please!')        self.lab4.grid(row = 5,column = 1,sticky = W)        #输入框        self.input = Entry(frame,width = 40)        self.input.grid(row = 6,column = 1,rowspan = 4,sticky = W)        #输入按钮        self.button1 = Button(frame,text = "Input",command = self.Submit)        self.button1.grid(row = 11,column = 1,sticky = E)        #串口开启按钮        self.button2 = Button(frame,text = 'Open Serial',command = self.open)        self.button2.grid(row = 7,column = 0,sticky = W)        #串口关闭按钮        self.button3 = Button(frame,text = 'Close Serial',command = self.close)        self.button3.grid(row = 10,column = 0,sticky = W)        #串口信息提示框        self.showSerial = Text(frame,width = 20,height = 2,wrap = WORD)        self.showSerial.grid(row = 12,column = 0,sticky = W)        #串口初始化配置        self.ser = Serial()        self.ser.setPort(self.port)        #self.ser.setBaudrate(self.baudrate)        #self.ser.open()        #print self.ser.isOpen()        #print self.ser    def Choice(self,event):        context = self.boxValue.get()        list = ["COM1",'COM2','COM3','COM4']        if context in list:            self.port = list.index(context)            self.ser.setPort(self.port)        print self.port    def ChoiceBaudrate(self,event):        self.baudrate = self.boxValueBaudrate.get()        self.ser.setBaudrate(self.baudrate)        print self.baudrate    def Submit(self):        context1 = self.input.get()        n = self.ser.write(context1)        output = self.ser.read(n)        print output        self.show.delete(0.0,END)        self.show.insert(0.0,output)    def open(self):        self.ser.open()        if self.ser.isOpen() == True:            self.showSerial.delete(0.0,END)            self.showSerial.insert(0.0,"Serial has been opend!")    def close(self):        self.ser.close()        if self.ser.isOpen() == False:            self.showSerial.delete(0.0,END)            self.showSerial.insert(0.0,"Serial has been closed!")root = Tk()root.title("Serial GUI")#root.geometry("3000x4000")app = GUI(root)root.mainloop()