用for和if绘制一个图形
* * * * * * * * * * * * *
* @ *
* @ @ *
* @ @ *
* @ @ *
* @ @ *
* @ @ *
* @ @ *
* @ @ *
* @ @ *
* @ @ *
* @ *
* * * * * * * * * * * * *
import java.io.*; import java.util.Scanner; public class IfelseP { public void draw(int h) { for (int m = 0; m <= h + 1; m++) { for (int n = 0; n <= h + 1; n++) { if ((m == 0 && n >= 0) || (n == 0 && m > 0) || (m == h + 1 && h + 1 > n && n > 0) || (n == h + 1 && m > 0)) { System.out.print(" "); System.out.print("*"); } else if (n == (h + 3) / 2 - m || n == (h - 1) / 2 + m || n == m - (h - 1) / 2 || n == (3 * h + 1) / 2 - m) { System.out.print(" "); System.out.print("@"); } else { System.out.print(" "); System.out.print(" "); } } System.out.println(); } /* * for (int i=1;i<=h;i++){ //逐行打印 for (int j=1;j<=h;j++){ * //每行打印个数数行数保持一致 //下面是菱形四天便的函数，在边上的坐标点打印*，否则打印空格 if * (j==(h+3)/2-i||j==(h-1)/2+i||j==i-(h-1)/2||j==(3*h+1)/2-i){ * System.out.print("*"); }else { System.out.print(" "); } } * System.out.println(); } */ } public static void main(String[] args) { IfelseP p = new IfelseP(); System.out.println("请输入大于1的奇数："); Scanner scanner = new Scanner(System.in); int a = scanner.nextInt(); p.draw(a); } }
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