九九乘法表写法

九九乘法表for函数递归void f(int n, int m){    int i = 0;    if (m < 10)    {        for (n = 1; n <= m; n++)        {            printf("%d*%d=%d ", n, m, n*m);        }        putchar('\n');        f(n, m + 1);    }}九九乘法表万全递归void fx(int n, int m){    if (n <= m)    {        printf("%d*%d=%d ", n, m, n*m);        fx(n + 1, m);    }}void f(int n, int m){    fx(n, m);    putchar('\n');    if (m < 9)    {        f(n, m + 1);    }}//for函数九九乘法表void main(){     int i = 0, k = 0, j = 0;    for (i =1; i < 10; i++)    {        for (k = 1; k <= i; k++)        {            printf("%d*%d=%d ",i,k, i*k);        }putchar('\n');    }    getchar();}