while 99乘法表

//九九乘法表

int num1 = 1;

int num2 = 1;

while (num1<9) {

while (num2 <= num1) {

cout << num1 << "*" << num2 << "=" << num1 * num2<<"?";

num2++;

}

cout << endl;

num2 = 1;

num1++;

}