Python实现时钟显示效果思路详解_Python

语言：Python

IDE：Python.IDE

1.编写时钟程序，要求根据时间动态更新

Python实现时钟显示效果思路详解

2.代码思路

需求：5个Turtle对象， 1个绘制外表盘+3个模拟表上针+1个输出文字
Step1：建立Turtle对象并初始化
Step2：静态表盘绘制
Step3：根据时钟更新表针位置与时间信息

基本库：Turtle、datetime

3.代码段

									from turtle import *

									from datetime import *

									def Skip(step):

									  penup()

									  forward(step)

									  pendown()

									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()

									  #注册Turtle形状命令register_shape(name,shape=None)

									  register_shape(name, handForm)

									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

									  #第二个参数为长度

									  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()

									def SetupClock(radius):

									  #建立表的外框

									  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)

									def Tick():

									  #绘制表针的动态显示

									  #当前时间

									  t = datetime.today()

									  second = t.second + t.microsecond*0.000001

									  minute = t.minute + second/60.0

									  hour = t.hour + minute/60.0

									  secHand.setheading(6*second)

									  minHand.setheading(6*minute)

									  hurHand.setheading(30*hour)

									   #介入Tracer函数以控制刷新速度

									  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)

									  ontimer(Tick, 100)#100ms后继续调用tick

									def main():

									  tracer(False)

									  Init()

									  SetupClock(160)

									  tracer(True)

									  Tick()

									  mainloop()

									if __name__ == "__main__":    

									  main()

补充：

Python实现时钟

1.小时钟获取当前时间并用打印在Console上

2.上代码

									import time,sys,os

									while(1):

									  t = time.strftime('%H:%M:%S',time.localtime(time.time()))

									  sys.stdout.write(t+'\b'*10)

									  sys.stdout.flush()

									  time.sleep(0.1)

									  os.system('cls')