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Python绘图之动态简洁时钟!小案例玩一玩!

发布时间:2020-12-17 01:26:35 所属栏目:Python 来源:网络整理
导读:进群;960410445? ?即可获取数十套PDF! 绘制代码 import turtle from datetime import * 画笔向前运动一段距离停下 def Skip(step): turtle.penup() turtle.forward(step) turtle.pendown() def mkHand(name,length): 注册Turtle形状,建立表针Turtle turtl

进群;960410445? ?即可获取数十套PDF!

绘制代码

import turtle 
from datetime import * 

画笔向前运动一段距离停下

def Skip(step):
turtle.penup()
turtle.forward(step)
turtle.pendown()

def mkHand(name,length):

注册Turtle形状,建立表针Turtle

turtle.reset()
Skip(-length * 0.1)

开始记录多边形的顶点

turtle.begin_poly()
turtle.forward(length * 1.1)

停止记录多边形的顶点

turtle.end_poly()

返回最后记录的多边形

handForm = turtle.get_poly()
turtle.register_shape(name,handForm)

def Init():
global secHand,minHand,hurHand,printer

重置Turtle指向北

turtle.mode("logo")

建立三个表针Turtle并初始化

mkHand("secHand",135)
mkHand("minHand",125)
mkHand("hurHand",90)
secHand = turtle.Turtle()
secHand.shape("secHand")
minHand = turtle.Turtle()
minHand.shape("minHand")
hurHand = turtle.Turtle()
hurHand.shape("hurHand")

for hand in secHand,hurHand:
hand.shapesize(1,1,3)
hand.speed(0)

建立输出文字Turtle

printer = turtle.Turtle()

隐藏画笔的turtle形状

printer.hideturtle()
printer.penup()

def SetupClock(radius):

建立表的外框

turtle.reset()
turtle.pensize(7)
for i in range(60):
Skip(radius)
if i % 5 == 0:
turtle.forward(20)
Skip(-radius - 20)

Skip(radius + 20)
if i == 0:
turtle.write(int(12),align="center",font=("Courier",14,"bold"))
elif i == 30:
Skip(25)
turtle.write(int(i/5),"bold"))
Skip(-25)
elif (i == 25 or i == 35):
Skip(20)
turtle.write(int(i/5),"bold"))
Skip(-20)
else:
turtle.write(int(i/5),"bold"))
Skip(-radius - 20)
else:
turtle.dot(5)
Skip(-radius)
turtle.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

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)

turtle.tracer(False)
printer.forward(65)
printer.write(Week(t),"bold"))
printer.back(130)
printer.write(Date(t),"bold"))
printer.home()
turtle.tracer(True)

100ms后继续调用tick

turtle.ontimer(Tick,100)

def main():

打开/关闭龟动画,并为更新图纸设置延迟

turtle.tracer(False)
Init()
SetupClock(160)
turtle.tracer(True)
Tick()
turtle.mainloop()

if name == "main":
main()

运行结果

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