Python 基础小项目（3）----水果转盘（GUI编程）

逃离我推掉我的手 2022-05-18 07:49 272阅读 0赞

代码实例：
    
    import tkinter
    # 导入线程模块
    import threading
    import time  # 导入代码的sleep 代码休眠
    
    root = tkinter.Tk()
    root.title('大转盘')
    root.minsize(300, 300)#转盘尺寸
    
    # 摆放按钮
    btn1 = tkinter.Button(root, text='樱桃', bg='red')
    btn1.place(x=20, y=20, width=50, height=50)
    
    btn2 = tkinter.Button(root, text='香蕉', bg='white')
    btn2.place(x=90, y=20, width=50, height=50)
    
    btn3 = tkinter.Button(root, text='苹果', bg='white')
    btn3.place(x=160, y=20, width=50, height=50)
    
    btn4 = tkinter.Button(root, text='西瓜', bg='white')
    btn4.place(x=230, y=20, width=50, height=50)
    
    btn5 = tkinter.Button(root, text='鸭梨', bg='white')
    btn5.place(x=230, y=90, width=50, height=50)
    
    btn6 = tkinter.Button(root, text='榴莲', bg='white')
    btn6.place(x=230, y=160, width=50, height=50)
    
    btn7 = tkinter.Button(root, text='柚子', bg='white')
    btn7.place(x=230, y=230, width=50, height=50)
    
    btn8 = tkinter.Button(root, text='葡萄', bg='white')
    btn8.place(x=160, y=230, width=50, height=50)
    
    btn9 = tkinter.Button(root, text='草莓', bg='white')
    btn9.place(x=90, y=230, width=50, height=50)
    
    btn10 = tkinter.Button(root, text='芒果', bg='white')
    btn10.place(x=20, y=230, width=50, height=50)
    
    btn11 = tkinter.Button(root, text='荔枝', bg='white')
    btn11.place(x=20, y=160, width=50, height=50)
    
    btn12 = tkinter.Button(root, text='甘蔗', bg='white')
    btn12.place(x=20, y=90, width=50, height=50)
    
    # 将所有选项组成列表
    fruitlists = [btn1, btn2, btn3, btn4, btn5, btn6, btn7, btn8, btn9, btn10, btn11, btn12]
    
    # 是否开启循环的标志
    isloop = False
    # 是否停止标志
    stopsign = False  # 是否接收到 stop信号
    # 存储停止id------用于进行stop后的重新启动
    stopid = None
    
    
    def round():
        global isloop
        global stopid
        i = 0
        if isinstance(stopid, int):
            i = stopid
        while True:
            # 延时操作
            time.sleep(0.2)
            # 将所有的组件背景变为白色
            for x in fruitlists:
                x['bg'] = 'white'
            # 将当前数值对应的组件变色
            fruitlists[i]['bg'] = 'red'
            # 变量+1
            i += 1
            print('当前i为', i)  # 当前i，用来追踪当前位置
            # 如果i大于最大索引直接归零
            if i >= len(fruitlists):
                i = 0
            if stopsign == True:  # 当停止标志 为真时
                isloop = False
                stopid = i  # 赋值stopid
                break
    
    
    def stop1():
        global stopsign
    
        if stopsign == True:  # 当多接收stop1（）函数时 ，直接跳过
            return
        stopsign = True
    
    
    # 建立一个新线程的函数
    def newtask():
        global isloop
        global stopsign
        # 建立线程
        stopsign = False
        # print(stopsign)  #打印 点击开始时的stopsign
        t = threading.Thread(target=round)
        # 开启线程运行
        t.start()
        # 设置循环开始标志
        isloop = True
    
    
    # 开始按钮
    btn_start = tkinter.Button(root, text='start', command=newtask)
    btn_start.place(x=90, y=125, width=50, height=50)
    
    # 停止按钮
    btn_stop = tkinter.Button(root, text='stop', command=stop1)
    btn_stop.place(x=160, y=125, width=50, height=50)
    
    root.mainloop()
    运行结果

![70][]

![70 1][]

[70]: /images/20220518/816bdc582efe4d02b51582cd0fac270c.png
[70 1]: /images/20220518/5fd4330a1f114885b6dab2d83e6f84b6.png