使用Python创建类时出现属性错误

class MyClass:
    def __init__(self, name):
        self.name = name  # 初始化属性

    def greet(self):
        return f"Hello, {self.name}!"

# 创建类的实例
obj = MyClass("Alice")

# 访问实例属性和方法
print(obj.name)  # 输出: Alice
print(obj.greet())  # 输出: Hello, Alice!

class MyClass:
    def greet(self):
        return f"Hello, {self.name}!"

obj = MyClass()
print(obj.name)  # 抛出 AttributeError: 'MyClass' object has no attribute 'name'

class MyClass:
    def __init__(self, name):
        self.name = name

    def greet(self):
        return f"Hello, {self.name}!"

class MyClass:
    def __init__(self, name):
        self.nam = name  # 拼写错误

    def greet(self):
        return f"Hello, {self.name}!"  # 抛出 AttributeError: 'MyClass' object has no attribute 'name'

class MyClass:
    def __init__(self, name):
        self.name = name  # 修正拼写错误

    def greet(self):
        return f"Hello, {self.name}!"