python如何用turtle写数字1,2,3,4,5,6,7,8,9

你可以使用Python中的turtle模块来绘制数字。下面是一个示例代码，展示了如何使用turtle绘制数字1到9：

import turtle

def draw_digit(digit):
    if digit == 1:
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(200)
    elif digit == 2:
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.left(90)
        turtle.forward(100)
        turtle.left(90)
        turtle.forward(100)
    elif digit == 3:
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.backward(100)
        turtle.left(90)
        turtle.forward(100)
    elif digit == 4:
        turtle.left(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.backward(100)
        turtle.right(90)
        turtle.forward(100)
    elif digit == 5:
        turtle.forward(100)
        turtle.backward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.left(90)
        turtle.forward(100)
    elif digit == 6:
        turtle.right(90)
        turtle.forward(100)
        turtle.left(90)
        turtle.forward(100)
        turtle.left(90)
        turtle.forward(100)
        turtle.left(90)
        turtle.forward(200)
    elif digit == 7:
        turtle.forward(100)
        turtle.right(135)
        turtle.forward(141.42)
    elif digit == 8:
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(200)
        turtle.right(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(200)
    elif digit == 9:
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.right(90)
        turtle.forward(100)
        turtle.backward(100)
        turtle.left(90)
        turtle.forward(100)

# 设置初始位置
turtle.penup()
turtle.goto(-200, 0)
turtle.pendown()

# 绘制数字1到9
draw_digit(1)
turtle.penup()
turtle.goto(-100, 0)
turtle.pendown()
draw_digit(2)
turtle.penup()
turtle.goto(0, 0)
turtle.pendown()
draw_digit(3)
turtle.penup()
turtle.goto(100, 0)
turtle.pendown()
draw_digit(4)
turtle.penup()
turtle.goto(200, 0)
turtle.pendown()
draw_digit(5)
turtle.penup()
turtle.goto(300, 0)
turtle.pendown()
draw_digit(6)
turtle.penup()
turtle.goto(400, 0)
turtle.pendown()
draw_digit(7)
turtle.penup()
turtle.goto(500, 0)
turtle.pendown()
draw_digit(8)
turtle.penup()
turtle.goto(600, 0)
turtle.pendown()
draw_digit(9)

# 隐藏海龟
turtle.hideturtle()
# 等待用户关闭窗口
turtle.done()

这段代码使用了turtle的基本命令来绘制数字1到9的轮廓。你可以根据需要进行修改和扩展。运行代码后，将会在窗口中显示绘制好的数字。