用turtle绘画电子数码管

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用turtle绘画电子数码管

今天我来用用turtle绘画电子数码管，在进入主题之前我们先理一下绘制这个电子数码管基本思路 

 基本思路

1. 绘制单个数字对应的数码管
2. 获得一串数字，绘制对应的数码管
3. 获得当前系统时间，绘制对应的数码管 

 绘制单段间隔

def drawGap():  #定义drawGappenup()fd(5)      #提笔，移动

 绘制单段数码管(单个数字)，代码如下

def drawLine(draw):  #定义drawLine函数if draw:pendown()else:penup()fd(40)drawGap()right(90)

1.  七段数码管由7个基本线条组成
2. 七段数码管可以有固定顺序
3. 不同数字显示不同的线条

根据数字绘制七段数码管(多个数字)，代码如下

def drawDigit(digit):    #定义drawDigitpencolor(random(), random(), random())drawLine(True) if digit in [2, 3, 4, 5, 6, 8, 9] else drawLine(False)#绘制一号线pencolor(random(), random(), random())#设置随机颜色drawLine(True) if digit in [0, 1, 3, 4, 5, 6, 7, 8, 9] else drawLine(False)#绘制二号线pencolor(random(), random(), random())#设置随机颜色drawLine(True) if digit in [0, 2, 3, 5, 6, 8, 9] else drawLine(False)#绘制三号线pencolor(random(), random(), random())#设置随机颜色drawLine(True) if digit in [0, 2, 6, 8] else drawLine(False)#绘制四号线pencolor(random(), random(), random())#设置随机颜色left(90)#在四号线和五号线之间需要直线，所以需要和四号线平行drawLine(True) if digit in [0, 4, 5, 6, 8, 9] else drawLine(False)#绘制五号线pencolor(random(), random(), random())#设置随机颜色drawLine(True) if digit in [0, 2, 3, 5, 6, 7, 8, 9] else drawLine(False)#绘制六号线pencolor(random(), random(), random())#设置随机颜色drawLine(True) if digit in [0, 1, 2, 3, 4, 7, 8, 9] else drawLine(False)#绘制七号线pencolor(random(), random(), random())#设置随机颜色left(180)penup()#为绘制后续数字确定位置fd(20)#为前后两数字之间分离的距离

获取要输出的数字(系统日期)
 

def drawDate(date): #date为日期，格式为%Y-%m=%d+%H@%M#%S&for i in date:if i == '-':write('年', font=("楷体", 20, "normal"))fd(40)elif i == '=':write('月', font=("楷体", 20, "normal"))fd(40)elif i == '+':write('日', font=("楷体", 20, "normal"))fd(40)elif i =='@':write('时', font=("楷体", 20, "normal"))fd(40)elif i =='#':write('分', font=("楷体", 20, "normal"))fd(40)elif i =='&':write('秒', font=("楷体", 20, "normal"))else:drawDigit(eval(i))#调用drawDigit()函数

编写主函数(函数调用，画布画笔的设置)
 

def main():setup(1200, 400, 200, 200)#设置画布坐标和大小penup()fd(-600)pensize(5)#设置画笔的粗细drawDate(time.strftime('%Y-%m=%d+%H@%M#%S&', time.localtime()))hideturtle()done()

 调用主函数

main()

 完整代码如下

from turtle import *
from random import *
import timedef drawGap():penup()fd(5)def drawLine(draw):if draw:pendown()else:penup()fd(40)drawGap()right(90)def drawDigit(digit):pencolor(random(), random(), random())drawLine(True) if digit in [2, 3, 4, 5, 6, 8, 9] else drawLine(False)pencolor(random(), random(), random())drawLine(True) if digit in [0, 1, 3, 4, 5, 6, 7, 8, 9] else drawLine(False)pencolor(random(), random(), random())drawLine(True) if digit in [0, 2, 3, 5, 6, 8, 9] else drawLine(False)pencolor(random(), random(), random())drawLine(True) if digit in [0, 2, 6, 8] else drawLine(False)pencolor(random(), random(), random())left(90)drawLine(True) if digit in [0, 4, 5, 6, 8, 9] else drawLine(False)pencolor(random(), random(), random())drawLine(True) if digit in [0, 2, 3, 5, 6, 7, 8, 9] else drawLine(False)pencolor(random(), random(), random())drawLine(True) if digit in [0, 1, 2, 3, 4, 7, 8, 9] else drawLine(False)pencolor(random(), random(), random())left(180)penup()fd(20)def drawDate(date):for i in date:if i == '-':write('年', font=("楷体", 20, "normal"))fd(40)elif i == '=':write('月', font=("楷体", 20, "normal"))fd(40)elif i == '+':write('日', font=("楷体", 20, "normal"))fd(40)elif i =='@':write('时', font=("楷体", 20, "normal"))fd(40)elif i =='#':write('分', font=("楷体", 20, "normal"))fd(40)elif i =='&':write('秒', font=("楷体", 20, "normal"))else:drawDigit(eval(i))def main():setup(1200, 400, 200, 200)penup()fd(-600)pensize(5)drawDate(time.strftime('%Y-%m=%d+%H@%M#%S&', time.localtime()))hideturtle()done()main()