顺时针输出二维数组元素值

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参考 http://blog.csdn.net/da1954ping/article/details/8043815

代码

#include <iostream>using namespace std;//顺时针输出二维数组void printMatrix(int a[][5],int row){    //cout << "size of a ="<< sizeof(a)<<endl;    //cout << "size of a[0] =" << sizeof(a[0]) <<endl;    //列数，第二维度长度    //cout << sizeof(a[0])/sizeof(int) << endl;    int left=0;    int column=sizeof(a[0])/sizeof(int);    //行数，第一维长度    //cout << sizeof(a)/sizeof(a[0]) <<"-----" << endl;    int low=0;    //int row=sizeof(a)/sizeof(a[0]);    while(left<column && low<row)    {        for(int i=left;i<column;i++)        {            cout << a[low][i] << " ";        }        low++;        for(int j=low;j<row;j++)        {            cout << a[j][column-1] << " ";        }        column--;        for(int i=column;i>left;i--)        {            cout << a[row-1][i-1] << " ";        }        row--;        for(int j=row;j>low;j--) {            cout << a[j-1][left] << " ";        }        left++;    }    cout << endl;}int main(){    int a[4][5]={        {1,  2, 3, 4, 5},        {14,15,16,17, 6},        {13,20,19,18, 7},        {12,11,10, 9, 8}    };    printMatrix(a,4);    //  a   80    //  a[0] 20    return 0;}

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