用C++打印倒金字塔星型(两种方法)

方法一：
#include <iostream>
using namespace std;
int main() {
    int row;
    cout << "请输入倒金字塔的行数：";
    cin >> row;

    for (int i = row; i >= 1; i--) {
        for (int k = i; k <= row-1; k++) {
            cout << " ";
        }
        for (int n =  1; n <+ 2 * i; n++) {
            cout << "*";
        }
        cout << endl;
    }
    system("pause");
    return 0;
}

 

方法二：
#include <iostream>
using namespace std;
int main() {
    int row;
    cout << "请输入倒三角的行数：";
    cin >> row;

    for (int i = 1; i <= row; i++) {
        for (int k = 0; k < i - 1; k++) {
            cout << " ";
        }
        for (int n = 2 * row - 2 * i + 1; n > 0; n--) {
            cout << "*";
        }
        cout << endl;
    }
    system("pause");
    return 0;
}