二维数组如何定义大小?//vector> vec;vec.size(???)

[mirroatl187]

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[点不亮的黑色]

敢问lz，你这是要做甚？

[JiMoKuangXiangQu]

/*
 * Build with Code::Blocks 13.12, and set GCC as compiler.
 */

#include <vector>
#include <iostream>

using namespace std;


int main()
{
    const int N = 3;
    int a[N] = {1, 2, 3};

    vector< vector<int> > ivv;
    vector<int> iv1(a, a+N);
    vector<int> iv2(a, a+1);

    ivv.push_back(iv1);
    ivv.push_back(iv2);

    for (vector< vector<int> >::const_iterator iit = ivv.begin();
         iit != ivv.end(); ++iit)
    {
        for (vector<int>::const_iterator it = iit->begin();
             it != iit->end(); ++it)
             cout << *it << ", ";
        cout << endl;
    }

    return 0;
}

供参考.