如何在python中动态创建类的实例

def method(self):
    return "Hello, World!"

# 动态创建一个类
DynamicClass = type('DynamicClass', (object,), {'method': method})

# 创建该类的实例
instance = DynamicClass()
print(instance.method())  # 输出: Hello, World!

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

    def display(self):
        print(f"Value is {self.value}")

class_name = "MyClass"
instance = getattr(globals()[class_name], "__init__")(None, 10)
instance.display()  # 输出: Value is 10

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

    def display(self):
        print(f"Value is {self.value}")

instance = eval("MyClass(10)")
instance.display()  # 输出: Value is 10