# -*- coding: utf-8 -*-
code = '''def my_function(self):
    print("Hello, World!")
        '''
exec(code, globals())
class_obj = globals()['my_function']
# print(class_obj())
# 创建临时实例方法
self.temp_method = types.MethodType(class_obj, self)
#
# # 调用临时实例方法
self.temp_method()