package struct; public class TestDemo01 { public static void main(String[] args) { //打印三角形 5行 for (int i = 1; i <= 5; i++) { for (int j = 5; j >=i ; j--) { System.out.print(" "); } for (int j = 1; j <=i ; j++) { System.out.print("*"); } for (int j = 1; j < i; j++) { System.out.print("*"); } System.out.println(); } } }
Debug:断点的使用