037.程序流程结构-嵌套循环-乘法口诀表

#include <iostream>
using namespace std;
int main()
{ //乘法口诀表

        //1×1 = 1
        //1×2 = 2  2×2 = 4
        //1×3 = 3  2×3 = 6  3×3 = 9
        //1×4 = 4  2×4 = 8  3×4 = 12 4×4 = 16
        //1×5 = 5  2×5 = 10 3×5 = 15 4×5 = 20 5×5 = 25
        //1×6 = 6  2×6 = 12 3×6 = 18 4×6 = 24 5×6 = 30 6×6 = 36
        //1×7 = 7  2×7 = 14 3×7 = 21 4×7 = 28 5×7 = 35 6×7 = 42 7×7 = 49
        //1×8 = 8  2×8 = 16 3×8 = 24 4×8 = 32 5×8 = 40 6×8 = 48 7×8 = 56 8×8 = 64
        //1×9 = 9  2×9 = 18 3×9 = 27 4×9 = 36 5×9 = 45 6×9 = 54 7×9 = 63 8×9 = 72 9×9 = 81
        
    //列数*行数=计算结果
    //列数<=当前行数


    for (size_t i = 1; i <=9; i++)
    {
        for (size_t j = 1; j <=i; j++)
        {
            cout <<j<<"×"<<i<<"="<< j*i<<"\t";
        }
        cout << endl;
    }
    system("pause");
    return 0;
}