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https://www.geeksforgeeks.org/vectorpush_back-vectorpop_back-c-stl/#:~:text=vector%3A%3Apush_back%20%28%29%20push_back%20%28%29%20function%20is%20used%20to,and%20the%20container%20size%20is%20increased%20by%201
您即将离开知乎,请注意您的帐号和财产安全。
https://www.geeksforgeeks.org/vectorpush_back-vectorpop_back-c-stl/#:~:text=vector%3A%3Apush_back%20%28%29%20push_back%20%28%29%20function%20is%20used%20to,and%20the%20container%20size%20is%20increased%20by%201