vector<int>().swap(v); cout<<"after swap size:"<< v.size() <<endl; cout<<"after swap capacity:"<< v.capacity() <<endl;return0; }//输出:size:5capacity:6after swap size:0after swap capacity:0还记得上篇博客的shrink_to_fit()吗,如果clear后在调用shrink_to_fit()不一样可以吗? #...