python绘制七段数码管

以下是使用Python绘制七段数码管的示例代码：

import turtle

# 定义数码管各段的绘制函数
def draw_segment(segment, length):
    turtle.setheading(0)
    turtle.penup()
    turtle.forward(length/2)
    turtle.pendown()
    if segment == 0:
        turtle.setheading(90)
        turtle.forward(length)
    elif segment == 1:
        turtle.setheading(45)
        turtle.forward(length/1.41)
        turtle.setheading(225)
        turtle.forward(length/1.41)
    elif segment == 2:
        turtle.setheading(135)
        turtle.forward(length/1.41)
        turtle.setheading(-45)
        turtle.forward(length/1.41)
    elif segment == 3:
        turtle.setheading(180)
        turtle.forward(length)
    elif segment == 4:
        turtle.setheading(-90)
        turtle.forward(length)
    elif segment == 5:
        turtle.setheading(-45)
        turtle.forward(length/1.41)
        turtle.setheading(45)
        turtle.forward(length/1.41)
    elif segment == 6:
        turtle.setheading(45)
        turtle.forward(length/1.41)
        turtle.setheading(135)
        turtle.forward(length/1.41)
    turtle.penup()
    turtle.goto(0, 0)
    turtle.pendown()

# 绘制数字0-9的函数
def draw_digit(digit, length):
    segments = [[0,1,2,4,5,6],[2,5],[0,2,3,4,6],[0,2,3,5,6],[1,2,3,5],[0,1,3,5,6],[0,1,3,4,5,6],[0,2,5],[0,1,2,3,4,5,6],[0,1,2,3,5,6]]
    for segment in segments[digit]:
        draw_segment(segment, length)

# 主程序
turtle.speed(0)
turtle.hideturtle()
turtle.bgcolor("black")
turtle.color("white")
length = 100
turtle.penup()
turtle.goto(-length*2, 0)
turtle.pendown()
draw_digit(1, length)
turtle.penup()
turtle.goto(0, 0)
turtle.pendown()
draw_digit(2, length)
turtle.penup()
turtle.goto(length*2, 0)
turtle.pendown()
draw_digit(3, length)
turtle.done()

这段代码将在窗口中绘制数字1、2、3的七段数码管。你可以根据需要修改代码来绘制其他数字。在代码中，`draw_segment()`函数根据传入的参数绘制数码管的各个段，`draw_digit()`函数根据传入的数字调用`draw_segment()`函数绘制相应的数字，而主程序则使用Turtle库绘制窗口、设置背景色和画笔颜色，并调用`draw_digit()`函数绘制数字。