请编写程序随机生成10个8位密码，确保随机生成出来的10个密码每个密码必须同时包含大写字母、小写字母和数字。（只能生成后检查，不能提前固定位置）

这里给出一个Python的示例代码：

import random
import string

# 定义密码长度和需要包含的字符集合
password_length = 8
char_set = string.ascii_letters + string.digits

# 生成10个符合要求的密码
passwords = []
while len(passwords) < 10:
    password = ''.join(random.sample(char_set, password_length))
    if any(c.islower() for c in password) and any(c.isupper() for c in password) and any(c.isdigit() for c in password):
        passwords.append(password)

# 输出结果
for i, password in enumerate(passwords):
    print(f"Password {i+1}: {password}")

运行结果示例：

Password 1: VqgRz4JL
Password 2: TnYx7vFa
Password 3: 3GkSjzQd
Password 4: 6NcFyZnW
Password 5: 1RfGpEgK
Password 6: 5sLdMmZP
Password 7: 9HjKbXeA
Password 8: rJ8nTb6G
Password 9: C5fNkSjg
Password 10: a9GyLpWd