python实现随机点名

新建txt文本，输入名字，每个进行换行

from tkinter import *
import time

class RandomName(Frame):
    def __init__(self, parent=None, **kw):
        Frame.__init__(self, parent, kw)
        self._timer = None
        self._start = 0.0
        self._elapsedtime = 0.0
        self._running = False
        self.timestr = StringVar()
        self.makeWidgets()

    def makeWidgets(self):
        #  定义标签栏
        l = Label(self, textvariable=self.timestr, font=("思源宋体", 45), pady=50)
        self.set_name(self._elapsedtime)
        l.pack(side=TOP)

    def update(self):
        # 更新显示内容
        self._elapsedtime = time.time() - self._start
        self.set_name(self._elapsedtime)  # 设置显示内容
        self._timer = self.after(50, self.update)  # 刷新界面

    def set_name(self, elap):
        # 随机产生姓名
        cur = int(elap * 100 % len(name_list))
        self.timestr.set(name_list[cur])

    # 开始
    def start(self):
        if not self._running:
            self._start = time.time() - self._elapsedtime
            self.update()
            self._running = True

    # 暂停
    def stop(self):
        if self._running:
            self.after_cancel(self._timer)
            self._elapsedtime = time.time() - self._start
            self.set_name(self._elapsedtime)
            self._running = False

    def name_label(self):
        # 显示窗口
        self.pack(side=TOP)
        Button(self, text='开始', command=self.start, width=10, height=2, bg="SeaGreen", font=("思源宋体", 13)).pack(side=LEFT)
        Button(self, text='结束', command=self.stop, width=10, height=2, bg="Red", font=("思源宋体", 13)).pack(side=LEFT)


name_list = []
if __name__ == '__main__':
    # 读取学生txt文件
    file_path = "./students.txt"
    with open(file_path, "r", encoding="utf-8") as file:
        content = file.read()
        lines = content.split('\n')
        for line in lines:
            name_list.append(line)

    root = Tk()
    root.title("随机点名")
    root.geometry('400x280')
    root.resizable(0, 0)
    sw = RandomName(root)
    sw.name_label()
    root.mainloop()