编辑代码

public class Recursive {

    public static void printRecursive(int n) {
        printRecursiveHelper(n, 1);
    }

    private static void printRecursiveHelper(int n, int currentRow) {
        if (currentRow > n) {
            return;
        }

        // 打印当前行的数字
        for (int i = 1; i <= currentRow; i++) {
            System.out.print(currentRow + " ");
        }

        System.out.println();  // 换行

        // 递归调用下一行
        printRecursiveHelper(n, currentRow + 1);
    }

    public static void main(String[] args) {
        int n = 7;
        printRecursive(n);
    }
}