示例 1: 显示最多 10 的乘法表
#include <iostream> using namespace std; int main() { int n; cout << "Enter a positive integer: "; cin >> n; for (int i = 1; i <= 10; ++i) { cout << n << " * " << i << " = " << n * i << endl; } return 0; }
输出
Enter an integer: 5 5 * 1 = 5 5 * 2 = 10 5 * 3 = 15 5 * 4 = 20 5 * 5 = 25 5 * 6 = 30 5 * 7 = 35 5 * 8 = 40 5 * 9 = 45 5 * 10 = 50
上面的这个程序只计算最多 10 的乘法表。
下面的程序是对上面程序的修改,其中还要求用户输入乘法表应显示的范围。
示例 2: 显示指定范围内的乘法表
#include <iostream> using namespace std; int main() { int n, range; cout << "Enter an integer: "; cin >> n; cout << "Enter range: "; cin >> range; for (int i = 1; i <= range; ++i) { cout << n << " * " << i << " = " << n * i << endl; } return 0; }
输出
Enter an integer: 8 Enter range: 12 8 * 1 = 8 8 * 2 = 16 8 * 3 = 24 8 * 4 = 32 8 * 5 = 40 8 * 6 = 48 8 * 7 = 56 8 * 8 = 64 8 * 9 = 72 8 * 10 = 80 8 * 11 = 88 8 * 12 = 96