实在找不出哪里缩进有问题


class User(): 
     """用户信息及描述"""
    def __init__(self, first_name, last_name, sex): 
        self.first = first_name
        self.last = last_name
        self.sex = sex
        self.login_attempts = 0
        
    """打印用户信息"""
    def describe_user(self): 
        print('\nName: ' + self.first.title() + 
                    self.last.title(), '\nSex: ' + self.sex)
                        
    """打印问候语"""
    def greet_user(self): 
        if self.sex == 'man': 
            print('\nMr. ' + self.first.title() + 
                    ' Welcome to the python.')
        else: 
            print('\nMis. ' + self.first.title() + 
                    ' Welcome to the python.')
    
    """尝试次数统计"""
    def increment_login_attempts(self):
        self.login_attempts += 1
    
    """重置尝试次数"""
    def reset_login_attempts(self): 
        if login_attempts != 0 
            login_attempts    == 0
                        

class Admin(User): 
    """管理员用户信息"""
    def __init__(self, first_name, last_name, sex): 
        """初始化父类"""
        super().__init__(first_name, last_name, sex)
        self.privileges = ["can add post", 
                                "can delete post", "can ban user"]
    
    """显示管理员权限"""
    def show_privileges(self): 
        for pri in self.privileges: 
            print('\n - ' + pri.titler())
    
    liu = Admin('li', 'qiang', 'man')
    liu.show_privileges()

提示错误是：


File "/private/var/mobile/Containers/Shared/AppGroup/106E91C2-1881-478A-9069-7F89CF8A559C/Pythonista3/Documents/练习用.py", line 4
    def __init__(self, first_name, last_name, sex):
                                                   ^
IndentationError: unindent does not match any outer indentation level

你好,你的程序的错误的地方有几处,我就不一一说了,直接将修改好的代码发给你,你对比一下就知道了,



class User():
    """用户信息及描述"""

    def __init__(self, first_name, last_name, sex):
        self.first = first_name
        self.last = last_name
        self.sex = sex
        self.login_attempts = 0

    """打印用户信息"""

    def describe_user(self):
        print('\nName: ' + self.first.title() +
              self.last.title(), '\nSex: ' + self.sex)

    """打印问候语"""

    def greet_user(self):
        if self.sex == 'man':
            print('\nMr. ' + self.first.title() +
                  ' Welcome to the python.')
        else:
            print('\nMis. ' + self.first.title() +
                  ' Welcome to the python.')

    """尝试次数统计"""

    def increment_login_attempts(self):
        self.login_attempts += 1

    """重置尝试次数"""

    def reset_login_attempts(self):
        if self.login_attempts != 0:
            self.login_attempts == 0


class Admin(User):
    """管理员用户信息"""

    def __init__(self, first_name, last_name, sex):
        """初始化父类"""
        super().__init__(first_name, last_name, sex)
        self.privileges = ["can add post",
                           "can delete post", "can ban user"]

    """显示管理员权限"""

    def show_privileges(self):
        for pri in self.privileges:
            print('\n - ' + pri.title())


liu = Admin('li', 'qiang', 'man')
liu.show_privileges()

运行结果

img