基于Python编写一个点名器的示例代码

目录

• 前言
• 主界面
• 添加姓名
• 查看花名册
• 使用指南 
• 名字转动功能
• 完整代码

前言

想起小学的时候老师想点名找小伙伴回答问题的时候，老师竟斥巨资买了个点名器。今日无聊便敲了敲小时候老师斥巨资买的点名器。

本人姓白，就取名小白点名器啦，嘿嘿

代码包含：添加姓名、查看花名册、使用指南、随机抽取名字的功能（完整源码在最后）

主界面

定义主界面。使用“w+”模式创建test.txt文件（我添加了个背景图片，若不需要可省略）

#打开时预加载储存在test.txt文件中的花名册
namelist = []
with open(\"test.txt\", \"r\") as f:
    for line in f.readlines():
        line = line.strip(\'\\n\')
        namelist.append(line)
win = Tk()
win.title(\'小白点名器\')
win.geometry(\'500x300\')
#定义画布，添加背景图片
canvas = Canvas(win,width=500,height=300)
img_obj = PhotoImage(file=r\"C:\\Users\\ge\\Downloads\\IMG_202206307919_png.png\") #需输入照片路径
image = canvas.create_image(250,0,anchor = \"n\" , image = img_obj)
canvas.pack()
a = StringVar()
b = StringVar()
b.set(\'开始\')
#定义可变文本信息
Label1 = Label(win, textvariable=a, font=(\'黑体\', 100)).place(y= 60 , x=65)
#定义四个按钮
Button1 = Button(win, textvariable=b, font=(\'等线\', 30), command = zhuanzhuan).place(y=210,x = 190)
Button2 = Button(win, text = \'添加姓名\', font=(\'等线\', 20), command = addname).place(x= 50,y =0)
Button3 = Button(win, text = \'查看\', font=(\'等线\', 20), command = chakan).place(x= 230,y =0)
Button4 = Button(win, text = \'指南\', font=(\'等线\', 20), command = zhinan).place(x= 360,y =0)
win.mainloop()

添加姓名

定义添加姓名界面，每添加一次姓名就保存到test.txt文件中，判断输入是否为空（添加提示框）、判断花名册是否为空。

#定义添加姓名界面
def addname():
    global Entry1
    window = Tk()
    window.title(\'姓名添加器\')
    window.geometry(\'400x200+500+200\')
    Label11 = Label(window, text = \'请在下方输入你要添加的姓名\', font=(\'黑体\', 18), anchor=\'center\').place(y=30, x=25)
    Entry1 = Entry(window, font=(\'等线\', 30), width=70)
    Entry1.place(y=80, x=70, width=200, height=80)
    Button3 = Button(window, text = \'确认\', font=(\'等线\', 18), command = addname1).place(x= 300,y =80, height=80)
#每添加一次姓名就保存到test.txt文件中
def addname1():
    global namelist #声明为全局变量实时更新
    if len(Entry1.get()) == 0:
        tkinter.messagebox.showinfo(\'提示\', \'姓名输入不能为空哦\')
    else:
        if len(Entry1.get()) == 2:
            zhongjian = list(Entry1.get())[::1]
            zhongjian1 = zhongjian[0] + \'  \' +zhongjian[1]
            if len(namelist) == 0:
                nam = zhongjian1
            else:
                nam = \'\\n\' + zhongjian1
        else:
            if len(namelist) == 0:
                nam = str(Entry1.get())
            else:
                nam = \'\\n\' + str(Entry1.get())
        with open(\"test.txt\", \"a\") as f:
            f.write(nam)
        tip = \'姓名:\' + Entry1.get() + \'   添加成功\'
        tkinter.messagebox.showinfo(\'提示\', tip)
        print(nam)
        namelist = []
        with open(\"test.txt\", \"r\") as f:
            for line in f.readlines():
                line = line.strip(\'\\n\')
                namelist.append(line)

查看花名册

这个比较简单，使用Text来显示字典内的信息即可

def chakan():
    window = Tk()
    window.title(\'花名册查看\')
    window.geometry(\'350x200+500+200\')
    console = Text(window, font=(\'等线\', 11))
    console.place(y=20, x=35, width=280, height=170)
    console.insert(1.0,namelist)

使用指南 

同上，使用Text显示 

def zhinan():
 
    window = Tk()
    window.title(\'小白点名器使用指南\')
    window.geometry(\'350x230+500+200\')
    console = Text(window, font=(\'等线\', 11))
    console.place(y=20, x=35, width=280, height=190)
    console.insert(1.0, \'                欢迎使用小白点名器1.0\\n你可以在”添加姓名按钮上输入你要添加的名字\\n你可以在”查看“按钮中查看花名册中所有的名字\'
                        \'\\n你可以在此程序同级的名为”花名册.txt“的文件夹中直接批量添加、删减姓名(使用回车做分隔)\\n--------------------------------\\n\'
                        \'(指南之外)此程序在CSDN中已开源,欢迎访问我的博客：晋升阁\\n需要合作的可加我微信：baijinge1137\')

名字转动功能

判断“开始”、“停止”状态。定义线程。启用一个线程

#判断状态
def zhuanzhuan():
    if b.get() == \'开始\':
        b.set(\'停止\')
    elif b.get() ==\"停止\":
        b.set(\'开始\')
    _thread.start_new_thread(xiancheng,()) #启用一个线程来转动姓名
#定义一个线程
def xiancheng():
    global xuanzhong
    while b.get()==\'停止\':
        try:
            xuanzhong = random.choice(namelist)
            a.set(xuanzhong)
            Label1.updata()#刷新数据
            time.sleep(0.3)#0.3秒刷新一次
        except:
            continue
            time.sleep(0.3)
    a.set(xuanzhong)

完整代码

提示：我的项目是在主界面添加了背景图片的，若是不需要添加背景图片可删掉90-94行代码。若是需要添加背景图片的需注意路径地址是否正确

import random
import time
from tkinter import *
import _thread
import tkinter.messagebox
def zhuanzhuan():
    if b.get() == \'开始\':
        b.set(\'停止\')
    elif b.get() ==\"停止\":
        b.set(\'开始\')
    _thread.start_new_thread(xiancheng,()) #启用一个线程来转动姓名
 
def xiancheng():
    global xuanzhong
    while b.get()==\'停止\':
        try:
            xuanzhong = random.choice(namelist)
            a.set(xuanzhong)
            Label1.updata()
            time.sleep(0.3)
        except:
            continue
            time.sleep(0.3)
    a.set(xuanzhong)
 
def addname1():
    global namelist #声明为全局变量实时更新
    if len(Entry1.get()) == 0:
        tkinter.messagebox.showinfo(\'提示\', \'姓名输入不能为空哦\')
    else:
        if len(Entry1.get()) == 2:
            zhongjian = list(Entry1.get())[::1]
            zhongjian1 = zhongjian[0] + \'  \' +zhongjian[1]
            if len(namelist) == 0:
                nam = zhongjian1
            else:
                nam = \'\\n\' + zhongjian1
        else:
            if len(namelist) == 0:
                nam = str(Entry1.get())
            else:
                nam = \'\\n\' + str(Entry1.get())
        with open(\"test.txt\", \"a\") as f:
            f.write(nam)
        tip = \'姓名:\' + Entry1.get() + \'   添加成功\'
        tkinter.messagebox.showinfo(\'提示\', tip)
        print(nam)
        namelist = []
        with open(\"test.txt\", \"r\") as f:
            for line in f.readlines():
                line = line.strip(\'\\n\')
                namelist.append(line)
 
def chakan():
    window = Tk()
    window.title(\'花名册查看\')
    window.geometry(\'350x200+500+200\')
    console = Text(window, font=(\'等线\', 11))
    console.place(y=20, x=35, width=280, height=170)
    console.insert(1.0,namelist)
 
def zhinan():
 
    window = Tk()
    window.title(\'小白点名器使用指南\')
    window.geometry(\'350x230+500+200\')
    console = Text(window, font=(\'等线\', 11))
    console.place(y=20, x=35, width=280, height=190)
    console.insert(1.0, \'                欢迎使用小白点名器1.0\\n你可以在”添加姓名按钮上输入你要添加的名字\\n你可以在”查看“按钮中查看花名册中所有的名字\'
                        \'\\n你可以在此程序同级的名为”花名册.txt“的文件夹中直接批量添加、删减姓名(使用回车做分隔)\\n--------------------------------\\n\'
                        \'(指南之外)此程序在CSDN中已开源,欢迎访问我的博客：晋升阁\\n需要合作的可加我微信：baijinge1137\')
 
def addname():
    global Entry1
    window = Tk()
    window.title(\'姓名添加器\')
    window.geometry(\'400x200+500+200\')
    Label11 = Label(window, text = \'请在下方输入你要添加的姓名\', font=(\'黑体\', 18), anchor=\'center\').place(y=30, x=25)
    Entry1 = Entry(window, font=(\'等线\', 30), width=70)
    Entry1.place(y=80, x=70, width=200, height=80)
    Button3 = Button(window, text = \'确认\', font=(\'等线\', 18), command = addname1).place(x= 300,y =80, height=80)
 
namelist = []
with open(\"test.txt\", \"r\") as f:
    for line in f.readlines():
        line = line.strip(\'\\n\')
        namelist.append(line)
win = Tk()
win.title(\'小白点名器\')
win.geometry(\'500x300\')
canvas = Canvas(win,width=500,height=300)
img_obj = PhotoImage(file=r\"C:\\Users\\ge\\Downloads\\IMG_202206307919_png.png\") #背景图片路径，若不需要添加将85—88行删掉即可
image = canvas.create_image(250,0,anchor = \"n\" , image = img_obj)
canvas.pack()
a = StringVar()
b = StringVar()
b.set(\'开始\')
Label1 = Label(win, textvariable=a, font=(\'黑体\', 100)).place(y= 60 , x=65)
Button1 = Button(win, textvariable=b, font=(\'等线\', 30), command = zhuanzhuan).place(y=210,x = 190)
Button2 = Button(win, text = \'添加姓名\', font=(\'等线\', 20), command = addname).place(x= 50,y =0)
Button3 = Button(win, text = \'查看\', font=(\'等线\', 20), command = chakan).place(x= 230,y =0)
Button4 = Button(win, text = \'指南\', font=(\'等线\', 20), command = zhinan).place(x= 360,y =0)
win.mainloop()

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