已知如下Python类定义：

class MyClass:
    # 实例方法
    def instance_func(self, msg):
        return f"实例方法：{msg}"

    # 类方法
    @classmethod
    def class_func(cls, msg):
        return f"类方法：{msg}"

    # 静态方法
    @staticmethod
    def static_func(msg):
        return f"静态方法：{msg}"