无聊使用 + 打印一个菱形玩玩

`package com.zryx.youxi;

public class YiYou {

public static void main(String[] args) {
	for (int i = 1; i <= 5; i++) {
		for (int j = 1; j <= 5 - i; j++) {
			System.out.print(" ");
		}
		for (int j = 1; j <= 2 * i - 1; j++) {
			System.out.print("+");
		}
		System.out.println();
	}
	for (int i = 4; i > 0; i--) {
		for (int j = 1; j <= 5 - i; j++) {
			System.out.print(" ");
		}
		for (int j = 1; j <= 2 * i - 1; j++) {
			System.out.print("+");
		}
		System.out.println();
	}
}

}`

运行结果：