Python __new__()方法，为对象分配内存 返回对象的引用

https://blog.csdn.net/houyanhua1/article/details/84107061?depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-4&utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-4