编辑代码

public class PrintSequence {  
    public static void main(String[] args) {  
        int n = 10; // 打印前10行  
        printSequence(n);  
    }  
  
    public static void printSequence(int n) {  
        for (int i = 1; i <= n; i++) {  
            for (int j = 1; j <= i; j++) {  
                System.out.print(i + " ");  
            }  
            System.out.println();  
        }  
    }  
}