使用vector<vector<int>>实现的一个二维数组

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 1 #include<iostream>
 #include<vector>
 using namespace std;
 int main()
 {
     typedef vector<int> COL;
     typedef vector<COL> ROW;

     COL vecCol;
     ROW vecRow;
     int in,cCnt{},rCnt{};
     while()
     {
         while()
         {
             cout<<"input "<<rCnt<<"."<<cCnt++<<"(<0 stop):"<<endl;
             cin>>in;
             if(in<)break;
             else vecCol.push_back(in);
         }
         if(!vecCol.empty())
         {
             vecRow.push_back(vecCol);
             vecCol.clear();
             ++rCnt;
         }
         cCnt=;
         cout<<"is Continue(<0 stop):"<<endl;
         cin>>in;
         if(in<)break;
     }
     for(auto row:vecRow)
     {
         for(auto col:row)
             cout<<col<<"  ";
         cout<<endl;
     }
 }