1、编程实现8个7段数码管同时显示相同的数字0-9，并每隔1秒变换一次； 2、编程实现8个7段数码管左移轮流显示数字0-9，A-F。

1、

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

# 7段数码管对应的引脚
segments = (14, 15, 18, 23, 24, 25, 8)

# 数字对应的段码
digits = {
    0: (1, 1, 1, 1, 1, 1, 0),
    1: (0, 1, 1, 0, 0, 0, 0),
    2: (1, 1, 0, 1, 1, 0, 1),
    3: (1, 1, 1, 1, 0, 0, 1),
    4: (0, 1, 1, 0, 0, 1, 1),
    5: (1, 0, 1, 1, 0, 1, 1),
    6: (1, 0, 1, 1, 1, 1, 1),
    7: (1, 1, 1, 0, 0, 0, 0),
    8: (1, 1, 1, 1, 1, 1, 1),
    9: (1, 1, 1, 1, 0, 1, 1)
}

# 初始化引脚
for segment in segments:
    GPIO.setup(segment, GPIO.OUT)
    GPIO.output(segment, 0)

# 显示数字
def display_number(number):
    for digit in range(0, 7):
        segment = segments[digit]
        GPIO.output(segment, digits[number][digit])

# 循环显示
while True:
    for number in range(0, 10):
        for i in range(0, 8):
            display_number(number)
        time.sleep(1)

2、

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

# 7段数码管对应的引脚
segments = (14, 15, 18, 23, 24, 25, 8)

# 数字对应的段码
digits = {
    0: (1, 1, 1, 1, 1, 1, 0),
    1: (0, 1, 1, 0, 0, 0, 0),
    2: (1, 1, 0, 1, 1, 0, 1),
    3: (1, 1, 1, 1, 0, 0, 1),
    4: (0, 1, 1, 0, 0, 1, 1),
    5: (1, 0, 1, 1, 0, 1, 1),
    6: (1, 0, 1, 1, 1, 1, 1),
    7: (1, 1, 1, 0, 0, 0, 0),
    8: (1, 1, 1, 1, 1, 1, 1),
    9: (1, 1, 1, 1, 0, 1, 1),
    10: (1, 1, 1, 0, 1, 1, 1),
    11: (0, 0, 1, 1, 1, 1, 1),
    12: (1, 0, 0, 1, 1, 1, 0),
    13: (0, 1, 1, 1, 1, 0, 1),
    14: (1, 0, 0, 1, 1, 1, 1),
    15: (1, 0, 0, 0, 1, 1, 1)
}

# 初始化引脚
for segment in segments:
    GPIO.setup(segment, GPIO.OUT)
    GPIO.output(segment, 0)

# 显示数字和字母
def display_digit(digit):
    for i in range(0, 7):
        segment = segments[i]
        GPIO.output(segment, digits[digit][i])

# 循环显示
while True:
    for i in range(0, 16):
        for j in range(0, 8):
            display_digit(i + j)
            time.sleep(0.1)