将空格放在通过递归函数显示的两个cout语句迭代之前

#include <iostream>

void recursiveFunction(int n, int level) {
    // 输出空格
    for (int i = 0; i < level; i++) {
        std::cout << " ";
    }
    
    std::cout << "cout statement: " << n << std::endl;
    
    if (n > 0) {
        recursiveFunction(n - 1, level + 1);
    }
    
    // 输出空格
    for (int i = 0; i < level; i++) {
        std::cout << " ";
    }
    
    std::cout << "cout statement: " << n << std::endl;
}

int main() {
    recursiveFunction(3, 0);
    return 0;
}

cout statement: 3
 cout statement: 2
  cout statement: 1
  cout statement: 1
 cout statement: 2
cout statement: 3