编辑代码

#include <iostream>
using namespace std;

//递归打印
void recursivePrint(int n) {
    if (n <= 0) 
        return;

    recursivePrint(n - 1); //递归

    for (int i = 0; i < n; i++) {
        cout << n << " ";
    }

    cout << endl;
}

int main() {
    int n;
    cout << "请输入图案行数：";
    cin >> n;

    recursivePrint(n);

    return 0;
}