绘数字时间图——千变万化Python

迈不过友情╰ 2023-02-21 06:08 16阅读 0赞

**如果对画图不明白可以参考** [基本绘图全面攻略——turtle（海龟）库][turtle]

画一个非常有趣的数字时间图。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70]

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

**建议程序的读取优先从 main()函数下到上**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 2]

#七段数码管绘数字
    import turtle
    def drawLine(draw):   # 绘制单段数码管
        turtle.pendown() if draw else turtle.penup()
        #如果draw为真 画笔下落，else 画笔抬起不留痕迹
        turtle.fd(40)
        turtle.right(90)
    
    def drawDigit(digit): #根据数字绘制七段数码管
        drawLine(True) if digit in [2,3,4,5,6,8,9] else drawLine(False) # 按步骤1：绘制判断
        # digit为真，则执行drawLine函数 画出一条线，依次7条线判断
        drawLine(True) if digit in [0,1,3,4,5,6,7,8,9] else drawLine(False)
        drawLine(True) if digit in [0,2,3,5,6,8,9] else drawLine(False)
        drawLine(True) if digit in [0,2,6,8] else drawLine(False)
        turtle.left(90)
        drawLine(True) if digit in [0,4,5,6,8,9] else drawLine(False)
        drawLine(True) if digit in [0,2,3,5,6,7,8,9] else drawLine(False)
        drawLine(True) if digit in [0,1,2,3,4,7,8,9] else drawLine(False)
        turtle.left(180) #由步骤1 图所示 海龟方向需要转变
        turtle.penup()
        turtle.fd(20) # 每个数字分隔 20像素的距离，不执行会出现怪诞的样子如上图：
    
    def drawDate(date):  #获得要输出的数字
        for i in date:
            drawDigit(eval(i))  #通过eval()函数将数字变为整数
    
    def main():
        turtle.setup(800, 350, 200, 200)    #设置窗体
        turtle.penup()
        turtle.fd(-300)     #倒退300像素
        turtle.pensize(5)   #海龟宽度为5像素
        drawDate('20200630')#函数 drawDate()的值
        turtle.hideturtle() #画完后把箭头隐藏
        turtle.done()       # 保持窗体不关闭
    main()

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 3]

#七段数码管绘数字版本2
    import turtle, time
    def drawGap(): #绘制数码管间隔
        turtle.penup()
        turtle.fd(5)    #线与线留空
    
    def drawLine(draw):   #绘制单段数码管
        drawGap() # drawLine()执行 就调用 drawGap()
        turtle.pendown() if draw else turtle.penup()
        turtle.fd(40)
        drawGap()
        turtle.right(90)
    
    def drawDigit(d): #根据数字绘制七段数码管
        drawLine(True) if d in [2,3,4,5,6,8,9] else drawLine(False)
        drawLine(True) if d in [0,1,3,4,5,6,7,8,9] else drawLine(False)
        drawLine(True) if d in [0,2,3,5,6,8,9] else drawLine(False)
        drawLine(True) if d in [0,2,6,8] else drawLine(False)
        turtle.left(90)
        drawLine(True) if d in [0,4,5,6,8,9] else drawLine(False)
        drawLine(True) if d in [0,2,3,5,6,7,8,9] else drawLine(False)
        drawLine(True) if d in [0,1,2,3,4,7,8,9] else drawLine(False)
        turtle.left(180)
        turtle.penup()
        turtle.fd(20)
    
    def drawDate(date):
        turtle.pencolor("red")
        for i in date:      #'%Y-%m=%d+' 从这里的获取的符号判断 if elif
            if i == '-':
                turtle.write('年',font=("Arial", 26, "normal"))
                turtle.pencolor("green") # 年写完就把箭头改为绿色，下次画出来就是绿色
                turtle.fd(60)
    
            elif i == '=':
                turtle.write('月',font=("Arial", 24, "normal"))
                turtle.pencolor("blue")
                turtle.fd(50)
    
            elif i == '+':
                turtle.write('日',font=("Arial", 22, "normal"))
            else:
                drawDigit(eval(i))  #把时间的数字换为整数赋值给 digit
    
    def main():
        turtle.setup(800, 350, 200, 200)
        turtle.penup()
        turtle.fd(-350)
        turtle.pensize(5)
        drawDate(time.strftime('%Y-%m=%d+',time.gmtime()))
        turtle.hideturtle()
        turtle.done()
    main()

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc3NTI1NQ_size_16_color_FFFFFF_t_70 4]

*  模块化思维：确定模块接口，封装功能
 *  规则化思维：抽象过程为规则，计算机自动执行
 *  化繁为简：将大功能变为小功能组合，分而治之

[turtle]: https://blog.csdn.net/weixin_44775255/article/details/106969230
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