模拟时钟

mooc视频学习时，照着视频手打，非原创

from turtle import *
from datetime import *

##绘制表盘
def SetupClock(radius):
    #建立标的外框
    reset()
    pensize(7)
    for i in range(60):
        Skip(radius)
        if i%5==0:
            forward(20)
            Skip(-radius-20)
        else:
            dot(5)
            Skip(-radius)
        right(6)


def Week(t):    
    week = ["星期一", "星期二", "星期三",
            "星期四", "星期五", "星期六", "星期日"]
    return week[t.weekday()]


def Date(t):
    y = t.year
    m = t.month
    d = t.day
    return "%s %d %d" % (y, m, d)



##跨越函数
def Skip(step):
    penup()
    forward(step)
    pendown()


##定义表针
def mkHand(name,length):
    #注册turtle形状，建立表针turtle
    reset()
    Skip(-length*0.1)
    begin_poly()
    forward(length*1.1)
    end_poly()
    handForm = get_poly()
    register_shape(name,handForm)


#初始化函数Init()
def Init():
    global secHand,minHand,hurHand,printer
    mode("logo")#重置turtle指向北
    #建立三个表针turtle并初始化
    mkHand("secHand",125)
    mkHand("minHand",130)
    mkHand("hurHand",90)
    secHand = Turtle()
    secHand.shape("secHand")
    minHand = Turtle()
    minHand.shape("minHand")
    hurHand = Turtle()
    hurHand.shape("hurHand")
    for hand in secHand,minHand,hurHand:
        hand.shapesize(1,1,3)
        hand.speed(0)
        #建立输出文字turtle
        printer = Turtle()
        printer.hideturtle()
        printer.penup()



#更新时钟函数Tick()
def Tick():
    #绘制表针的动态显示
    t = datetime.today()
    second = t.second + t.microsecond*0.000001
    minute = t.minute + second/60.0
    hour = t.hour + minute/60.0

    tracer(False)
    printer.forward(65)
    printer.write(Week(t),align="center",font=("Courier",14,"bold"))
    printer.back(130)
    printer.write(Date(t),align="center",font=("Courier",14,"bold"))
    printer.home()
    tracer(True)
    secHand.setheading(6*second)
    minHand.setheading(6*minute)
    hurHand.setheading(30*hour)
    ontimer(Tick,100)#100ms后继续调用tick



def main():
    tracer(False)#关闭绘画过程
    Init()
    SetupClock(160)
    tracer(True)#回到结束动画时的位置
    Tick()
    mainloop()


if __name__ == "__main__":       
    main()