# -*- coding: utf-8 -*-
import turtle
import time

def draw_clock(r):  # 画钟表的函数
    turtle.pensize(5)
    turtle.penup()
    turtle.goto(0, -r)
    turtle.pendown()
    turtle.circle(r)
    turtle.penup()
    turtle.goto(0,0)
    turtle.pendown()
    for i in range(12):
        turtle.penup()
        turtle.goto(0, r-20)
        turtle.right(i*30)
        turtle.forward(r-20)
        turtle.write(i+1)

def draw_hand(handname, length):
    # 画指针的函数
    turtle.pensize(4)
    turtle.pencolor('black')
    turtle.pencolor()
    turtle.penup()
    turtle.goto(0,0)
    turtle.down()
    turtle.seth(180)
    turtle.rt(handname*30)
    turtle.fd(length)

def get_time():
    # 获取当前时间的函数
    t = time.localtime()
    hour = t.tm_hour
    minute = t.tm_min
    second = t.tm_sec
    return hour, minute, second

def clock():
    # 主函数，控制钟表的运转
    turtle.speed(0)
    draw_clock(200)
    while True:
        hour, minute, second = get_time()
        draw_hand(hour, 60)
        draw_hand(minute, 100)
        draw_hand(second, 150)
        turtle.goto(0, -220)
        turtle.write(str(hour)+":"+str(minute)+":"+str(second), align="center",
                     font=("Arial", 20, "normal"))
        turtle.clear()


if __name__ == '__main__':
    clock()