编写Python程序,使用七段数码管实现任意日期的显示
时间: 2023-06-14 08:06:05 浏览: 180
下面是一个使用七段数码管实现任意日期显示的 Python 程序:
```python
# 导入必要的库
import turtle
# 定义全局变量
WIDTH, HEIGHT = 600, 600
PADDING = 50
SEGMENT_LENGTH = 100
SEGMENT_WIDTH = 20
DIGIT_WIDTH = SEGMENT_LENGTH + SEGMENT_WIDTH
DIGIT_HEIGHT = 2 * SEGMENT_LENGTH + 3 * SEGMENT_WIDTH
SEGMENT_GAP = SEGMENT_WIDTH / 2
# 定义数字的七段编码
DIGITS = {
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],
'-': [0, 0, 0, 1, 0, 0, 0],
}
# 定义画七段数码管的函数
def draw_segment(x, y, length, width, is_on):
turtle.up()
turtle.goto(x, y)
turtle.down()
turtle.setheading(0)
turtle.forward(length / 2)
turtle.right(90)
turtle.forward(width / 2)
turtle.color("red" if is_on else "gray")
turtle.begin_fill()
for i in range(2):
turtle.forward(length)
turtle.right(90)
turtle.forward(width)
turtle.right(90)
turtle.end_fill()
# 定义画数字的函数
def draw_digit(digit, x, y):
segments = DIGITS[digit]
draw_segment(x, y + SEGMENT_LENGTH + SEGMENT_GAP, SEGMENT_LENGTH, SEGMENT_WIDTH, segments[0]) # 上
draw_segment(x, y + 2 * SEGMENT_LENGTH + 2 * SEGMENT_WIDTH + 2 * SEGMENT_GAP, SEGMENT_LENGTH, SEGMENT_WIDTH, segments[1]) # 下
draw_segment(x, y + SEGMENT_LENGTH + 2 * SEGMENT_WIDTH + SEGMENT_GAP, SEGMENT_WIDTH, SEGMENT_LENGTH, segments[2]) # 左上
draw_segment(x, y + SEGMENT_LENGTH + SEGMENT_WIDTH + SEGMENT_GAP, SEGMENT_WIDTH, SEGMENT_LENGTH, segments[3]) # 左下
draw_segment(x + SEGMENT_LENGTH + SEGMENT_WIDTH, y + SEGMENT_LENGTH + SEGMENT_WIDTH + SEGMENT_GAP, SEGMENT_WIDTH, SEGMENT_LENGTH, segments[4]) # 右下
draw_segment(x + SEGMENT_LENGTH + SEGMENT_WIDTH, y + SEGMENT_LENGTH + 2 * SEGMENT_WIDTH + SEGMENT_GAP, SEGMENT_WIDTH, SEGMENT_LENGTH, segments[5]) # 右上
draw_segment(x, y + SEGMENT_WIDTH + SEGMENT_GAP, SEGMENT_WIDTH, SEGMENT_LENGTH, segments[6]) # 中间
# 定义画日期的函数
def draw_date(date_str):
turtle.clear()
turtle.up()
turtle.goto(-WIDTH / 2 + PADDING, 0)
turtle.down()
turtle.color("black")
turtle.write(date_str, font=("Arial", 24, "bold"))
turtle.up()
turtle.goto(-WIDTH / 2 + PADDING, -DIGIT_HEIGHT / 2 + PADDING)
turtle.down()
for digit in date_str:
if digit.isdigit():
draw_digit(int(digit), turtle.xcor(), turtle.ycor())
turtle.forward(DIGIT_WIDTH)
elif digit == '-':
draw_digit(digit, turtle.xcor(), turtle.ycor())
turtle.forward(DIGIT_WIDTH / 2)
else:
pass
# 主程序
if __name__ == '__main__':
turtle.setup(WIDTH, HEIGHT)
turtle.title("七段数码管显示器")
turtle.speed(0)
turtle.hideturtle()
date_str = input("请输入日期(格式为YYYY-MM-DD):")
draw_date(date_str)
turtle.done()
```
该程序可以根据输入的日期,在窗口中画出对应的七段数码管。用户可以使用键盘输入任意日期。程序会将日期转换为字符串形式,并在窗口中显示。然后,程序会遍历该字符串中的每个字符,并调用 `draw_digit()` 函数画出对应的数字。如果该字符是 `-`,则调用 `draw_digit()` 函数画出横线。最终,程序会在窗口中显示出完整的日期。
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