转载--深拷贝和浅拷贝以及内存

感谢  https://blog.csdn.net/jiang7701037/article/details/98738487?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522164506487316780264030155%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=164506487316780264030155&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~top_positive~default-1-98738487.first_rank_v2_pc_rank_v29&utm_term=%E6%B7%B1%E6%8B%B7%E8%B4%9D%E4%B8%8E%E6%B5%85%E6%8B%B7%E8%B4%9D&spm=1018.2226.3001.4187