import random

num1 = random.randint(1, 5)
print(num1)  # 显示随机数
num2 = int(input(‘please the input digital:‘))
if num2 > num1:
    print(‘bigger‘)
elif num2 < num1:
    print(‘less‘)
else:
    print(‘equal‘)

count = 0
for i in range(1, 100):
    num = str(i)
    if ‘9‘ in num:
        i = int(num)
        print(i, end=‘ ‘)
        count += 1
print()
print(‘共有{}个数‘.format(count))

count = 0
s = set()  # 集合，为了去除重复项
for i in range(1, 100):
    if i < 10:
        num = str(i)
        if ‘9‘ in num:
            count += 1
            num1 = int(num)
            s.add(num1)
    else:
        num = str(i)
        if num[0] == ‘9‘:
            count += 1
            num1 = int(num)
            s.add(num1)
        if num[1] == ‘9‘:
            count += 1
            num1 = int(num)
            s.add(num1)

li = list(s)
li.sort()
print(li)
print(‘出现的次数共{}次‘.format(count))

for i in range(1, 10):
    for j in range(1, i + 1):
        m = i * j
        print(‘{} * {} = {}‘.format(j, i, m), end=‘  ‘)
    print()

li = []
for i in range(1, 5):
    i = str(i)
    for a in range(1, 5):
        a = str(a)
        s = i + a
        if i == a:
            continue
        for b in range(1, 5):
            b = str(b)
            if i == a or i == b or a == b:
                continue

            if len(s + b) == 3:
                sum = s + b
                sum = int(sum)
                li.append(sum)

print(‘互不相同且无重复数字的三位数个数为{}‘ .format(len(li)))
print(li)