day9- 流程控制完结

 1 public static void main(String[] args) {
 2         //打印三角形
 3         for (int i = 1; i <= 5; i++) {
 4            for (int j=5;j>=i;j--){
 5                System.out.print(" ");
 6            }
 7             for (int j=1;j<=i;j++){
 8                 System.out.print("*");
 9             }
10             for (int j=1;j<i;j++){
11                 System.out.print("*");
12             }
13             System.out.println();
14         }
15     }