Turtle 库应用实践
在掌握Turtle库基本应用能力的基础上，编程实现“段码屏字体”的阿拉伯数字显示。并完成如下四个中的一个指定子任务：
实现以鼠标单击控制的秒表程序，计时结果以“段码屏字体”显示；
引入ChatGPT部分内容参考：
import turtle
import time
# 定义数字的段码
digit_segments = {
0: [1, 1, 1, 0, 1, 1, 1],
1: [0, 0, 1, 0, 0, 1, 0],
2: [1, 0, 1, 1, 1, 0, 1],
3: [1, 0, 1, 1, 0, 1, 1],
4: [0, 1, 1, 1, 0, 1, 0],
5: [1, 1, 0, 1, 0, 1, 1],
6: [1, 1, 0, 1, 1, 1, 1],
7: [1, 0, 1, 0, 0, 1, 0],
8: [1, 1, 1, 1, 1, 1, 1],
9: [1, 1, 1, 1, 0, 1, 1]
}
# 定义每个数字的位置和大小
digit_positions = [
(-200, 0, 50),
(-100, 0, 50),
(0, 0, 50),
(100, 0, 50),
(200, 0, 50)
]
# 定义绘制数字的函数
def draw_digit(digit, position, size):
segments = digit_segments[digit]
x, y = position
turtle.penup()
turtle.goto(x, y)
turtle.pendown()
turtle.setheading(0)
turtle.pensize(size)
if segments[0]:
turtle.forward(size * 3)
else:
turtle.penup()
turtle.forward(size * 3)
turtle.pendown()
turtle.right(90)
if segments[1]:
turtle.forward(size * 5)
else:
turtle.penup()
turtle.forward(size * 5)
turtle.pendown()
turtle.right(90)
if segments[2]:
turtle.forward(size * 5)
else:
turtle.penup()
turtle.forward(size * 5)
turtle.pendown()
turtle.right(90)
if segments[3]:
turtle.forward(size * 3)
else:
turtle.penup()
turtle.forward(size * 3)
turtle.pendown()
turtle.right(90)
if segments[4]:
turtle.forward(size * 5)
else:
turtle.penup()
turtle.forward(size * 5)
turtle.pendown()
turtle.right(90)
if segments[5]:
turtle.forward(size * 5)
else:
turtle.penup()
turtle.forward(size * 5)
turtle.pendown()
turtle.right(90)
if segments[6]:
turtle.forward(size * 3)
else:
turtle.penup()
turtle.forward(size * 3)
turtle.pendown()
# 定义绘制秒表的函数
def draw_stopwatch():
turtle.clear()
for i in range(5):
draw_digit(0, digit_positions[i], 10)
turtle.update()
# 定义计时器
def stopwatch():
start_time = time.time()
while True:
elapsed_time = time.time() - start_time
minutes = int(elapsed_time // 60)
seconds = int(elapsed_time % 60)
draw_digit(minutes // 10, digit_positions[0], 50)
draw_digit(minutes % 10, digit_positions[1], 50)
draw_digit(seconds // 10, digit_positions[2], 50)
draw_digit(seconds % 10, digit_positions[3], 50)
turtle.update()
# 初始化画布和画笔
turtle.setup(500, 200)
turtle.hideturtle()
turtle.tracer(False)
# 绘制秒表
draw_stopwatch()
# 点击鼠标开始计时
turtle.onscreenclick(stopwatch)
turtle.done()
运行程序后，点击鼠标即可开始计时，计时结果以“段码屏字体”显示在画布上。
import turtle
turtle.pensize(5)
for i in range(9):
turtle.fd(130)
turtle.left(80)
turtle.done()
问题优化：我需要使用Python的Turtle库来显示阿拉伯数字，使用“段码屏字体”。此外，我还需要完成四个子任务中的任意一个，其中之一是实现一个秒表程序，使用鼠标单击进行控制，结束后将计时结果使用“段码屏字体”显示出来。请问该如何实现这一需求？请给出具体步骤和代码示例，并提供以下提示：
参考代码：
from turtle import *
import time
# 定义数字字符集对应的段码
digit_segments = {
'0': [0, 1, 2, 3, 4, 5],
'1': [1, 2],
'2': [0, 1, 3, 4, 6],
'3': [0, 1, 2, 3, 6],
'4': [1, 2, 5, 6],
'5': [0, 2, 3, 5, 6],
'6': [0, 2, 3, 4, 5, 6],
'7': [0, 1, 2, 5],
'8': [0, 1, 2, 3, 4, 5, 6],
'9': [0, 1, 2, 3, 5, 6]
}
# 定义绘制单个数字的函数
def draw_digit(digit, x, y, seg_len):
# 绘制数字的每个段
for seg in digit_segments[digit]:
if seg == 0:
goto(x, y + seg_len)
setheading(0)
elif seg == 1:
goto(x + seg_len, y + seg_len)
setheading(-90)
elif seg == 2:
goto(x + seg_len, y)
setheading(-90)
elif seg == 3:
goto(x, y - seg_len)
setheading(0)
elif seg == 4:
goto(x + seg_len, y - seg_len)
setheading(90)
elif seg == 5:
goto(x, y)
setheading(90)
pendown()
forward(seg_len)
penup()
# 定义绘制多位数字的函数
def draw_number(number, x, y, seg_len):
# 将数字转化为字符串，逐个绘制数字
for digit in str(number):
draw_digit(digit, x, y, seg_len)
x += seg_len * 1.5
# 定义处理计时的函数
def timer_handler(x, y):
global is_timing, start_time, end_time
if not is_timing:
# 开始计时
is_timing = True
start_time = time.time()
else:
# 结束计时
is_timing = False
end_time = time.time()
# 计算结果并显示
elapsed_time = round(end_time - start_time, 2)
clear()
draw_number(elapsed_time, -200, 0, 30)
# 初始化Turtle的绘图状态
setup(600, 400)
tracer(False)
penup()
# 绘制数字0到9
draw_number(1234567890, -200, 0, 30)
# 定义计时变量和事件处理
is_timing = False
start_time = 0
end_time = 0
onscreenclick(timer_handler)
# 启动主循环
done()
提示解析：