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Python基础(八) 判断密码强弱demo

判断密码强弱1.0




https://docs.python.org/3/library/stdtypes.html#string-methods

'''
判断密码强弱1.0
'''
def check_number_exist(password_str):
    """
        判断字符串中是否含有数字
    """
    for c in password_str:
        if c.isnumeric():
            return True
    return False

def check_letter_exist(password_str):
    """
        判断字符串中是否含有字母
    """
    for c in password_str:
        if c.isalpha():
            return True
    return False

def main():
    """
        主函数
    """
    password = input('请输入密码:')

    # 密码强度
    strength_level = 0

    # 规则1:密码长度大于8
    if len(password) >= 8:
        strength_level += 1
    else:
        print('密码长度要求至少8位!')

    # 规则2:包含数字
    if check_number_exist(password):
        strength_level += 1
    else:
        print('密码要求包含数字!')

    # 规则3:包含字母
    if check_letter_exist(password):
        strength_level += 1
    else:
        print('密码要求包含字母!')

    if strength_level == 3:
        print('恭喜!密码强度合格!')
    else:
        print('密码强度不合格!')

if __name__ == '__main__':
    main()

测试结果1:

请输入密码:#
密码长度要求至少8位!
密码要求包含数字!
密码要求包含字母!
密码强度不合格!
测试结果2:
请输入密码:asdasd123
恭喜!密码强度合格!

判断密码强弱2.0



'''
判断密码强弱2.0
'''
def check_number_exist(password_str):
    """
        判断字符串中是否含有数字
    """
    has_number = False

    for c in password_str:
        if c.isnumeric():
            has_number = True
            break

    return has_number

def check_letter_exist(password_str):
    """
        判断字符串中是否含有字母
    """
    has_letter = False
    for c in password_str:
        if c.isalpha():
            has_letter = True
            break
    return has_letter

def main():
    """
        主函数
    """
    try_times = 5

    while try_times > 0:
        password = input('请输入密码:')
        
        # 密码强度
        strength_level = 0

        # 规则1:密码长度大于8
        if len(password) >= 8:
            strength_level += 1
        else:
            print('密码长度要求至少8位!')

        # 规则2:包含数字
        if check_number_exist(password):
            strength_level += 1
        else:
            print('密码要求包含数字!')

        # 规则3:包含字母
        if check_letter_exist(password):
            strength_level += 1
        else:
            print('密码要求包含字母!')

        if strength_level == 3:
            print('恭喜!密码强度合格!')
            break
        else:
            print('密码强度不合格!')
            try_times -= 1

        print()

    if try_times <= 0:
        print('尝试次数过多,密码设置失败!')

if __name__ == '__main__':
    main()

测试结果:

尝试次数过多,密码设置失败!
测试结果2:
请输入密码:asdasd123
恭喜!密码强度合格!

判断密码强弱3.0




测试结果:

请输入密码:asdasd123
恭喜!密码强度合格!
请输入密码:asdasd123
恭喜!密码强度合格!
请输入密码:aa
密码长度要求至少8位!
密码要求包含数字!
密码强度不合格!

判断密码强弱4.0


'''
判断密码强弱4.0
'''
def check_number_exist(password_str):
    """
        判断字符串中是否含有数字
    """
    has_number = False

    for c in password_str:
        if c.isnumeric():
            has_number = True
            break

    return has_number

def check_letter_exist(password_str):
    """
        判断字符串中是否含有字母
    """
    has_letter = False
    for c in password_str:
        if c.isalpha():
            has_letter = True
            break
    return has_letter

def main():
    """
        主函数
    """
    # 读取文件
    f = open('password_3.0.txt', 'r')

    # 1. read()
    # content = f.read()
    # print(content)

    # 2. readline()
    # line = f.readline()
    # print(line)
    # line = f.readline()
    # print(line)
    # line = f.readline()
    # print(line)

    # 3. readlines()
    for line in f:
        print('read: {}'.format(line))

    f.close()

if __name__ == '__main__':
    main()

测试结果1:

密码:asdasd123, 强度:3
密码:asdasd123, 强度:3
密码:aa, 强度:1

测试结果2:

密码:asdasd123, 强度:3

密码:asdasd123, 强度:3

密码:aa, 强度:1

测试结果3:

密码:asdasd123, 强度:3

密码:asdasd123, 强度:3

密码:aa, 强度:1

判断密码强弱5.0



'''
判断密码强弱5.0
'''
class PasswordTool:
    """
        密码工具类
    """
    def __init__(self, password):
        # 类的属性
        self.password = password
        self.strength_level = 0

    def process_password(self):
        # 规则1:密码长度大于8
        if len(self.password) >= 8:
            self.strength_level += 1
        else:
            print('密码长度要求至少8位!')

        # 规则2:包含数字
        if self.check_number_exist():
            self.strength_level += 1
        else:
            print('密码要求包含数字!')

        # 规则3:包含字母
        if self.check_letter_exist():
            self.strength_level += 1
        else:
            print('密码要求包含字母!')

    # 类的方法
    def check_number_exist(self):
        """
            判断字符串中是否含有数字
        """
        has_number = False

        for c in self.password:
            if c.isnumeric():
                has_number = True
                break

        return has_number

    def check_letter_exist(self):
        """
            判断字符串中是否含有字母
        """
        has_letter = False
        for c in self.password:
            if c.isalpha():
                has_letter = True
                break
        return has_letter

def main():
    """
        主函数
    """

    try_times = 5

    while try_times > 0:

        password = input('请输入密码:')
        # 实例化密码工具对象
        password_tool = PasswordTool(password)
        password_tool.process_password()

        f = open('password_5.0.txt', 'a')
        f.write('密码:{}, 强度:{}\n'.format(password, password_tool.strength_level))
        f.close()

        if password_tool.strength_level == 3:
            print('恭喜!密码强度合格!')
            break
        else:
            print('密码强度不合格!')
            try_times -= 1

        print()

    if try_times <= 0:
        print('尝试次数过多,密码设置失败!')

if __name__ == '__main__':
    main()

测试结果:

请输入密码:dsadbhasd78a6d
恭喜!密码强度合格!

判断密码强弱6.0


'''
判断密码强弱6.0
'''
class PasswordTool:
    """
        密码工具类
    """
    def __init__(self, password):
        # 类的属性
        self.password = password
        self.strength_level = 0

    def process_password(self):
        # 规则1:密码长度大于8
        if len(self.password) >= 8:
            self.strength_level += 1
        else:
            print('密码长度要求至少8位!')

        # 规则2:包含数字
        if self.check_number_exist():
            self.strength_level += 1
        else:
            print('密码要求包含数字!')

        # 规则3:包含字母
        if self.check_letter_exist():
            self.strength_level += 1
        else:
            print('密码要求包含字母!')

    # 类的方法
    def check_number_exist(self):
        """
            判断字符串中是否含有数字
        """
        has_number = False

        for c in self.password:
            if c.isnumeric():
                has_number = True
                break

        return has_number

    def check_letter_exist(self):
        """
            判断字符串中是否含有字母
        """
        has_letter = False
        for c in self.password:
            if c.isalpha():
                has_letter = True
                break
        return has_letter


class FileTool:
    """
        文件工具类
    """
    def __init__(self, filepath):
        self.filepath = filepath

    def write_to_file(self, line):
        f = open(self.filepath, 'a')
        f.write(line)
        f.close()

    def read_from_file(self):
        f = open(self.filepath, 'r')
        lines = f.readlines()
        f.close()
        return lines


def main():
    """
        主函数
    """
    try_times = 5
    filepath = 'password_6.0.txt'
    # 实例化文件工具对象
    file_tool = FileTool(filepath)

    while try_times > 0:
        password = input('请输入密码:')
        # 实例化密码工具对象
        password_tool = PasswordTool(password)
        password_tool.process_password()

        line = '密码:{}, 强度:{}\n'.format(password, password_tool.strength_level)
        # 写操作
        file_tool.write_to_file(line)

        if password_tool.strength_level == 3:
            print('恭喜!密码强度合格!')
            break
        else:
            print('密码强度不合格!')
            try_times -= 1

        print()

    if try_times <= 0:
        print('尝试次数过多,密码设置失败!')

    # 读操作
    lines = file_tool.read_from_file()
    print(lines)


if __name__ == '__main__':
    main()

测试结果:

请输入密码:aa
密码长度要求至少8位!
密码要求包含数字!
密码强度不合格!

请输入密码:asdasd123
恭喜!密码强度合格!
['密码:aa, 强度:1\n', '密码:asdasd123, 强度:3\n']

posted on 2019-02-21 13:53  咘雷扎克  阅读(660)  评论(0编辑  收藏  举报

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