画爱心，,import java.

画爱心，,import java.

import java.util.Scanner;class Main {    static void drawHeart(int n) {        int i, j;        for (i = 1 - (n >> 1); i <= n; i++)            if (i > 0) {                for (j = 0; j < i; j++)                    System.out.print("  ");                for (j = 1; j <= 2 * (n - i) + 1; j++)                    if (j == 1 || j == 2 * (n - i) + 1)                        System.out.print(" *");                    else                        System.out.print("  ");                System.out.println("\\n");            } else if (i == 0) {                System.out.print(" *");                for (j = 1; j < n; j++)                    System.out.print("  ");                System.out.print(" *");                for (j = 1; j < n; j++)                    System.out.print("  ");                System.out.print(" *\\n");            } else {                for (j = i; j < 0; j++)                    System.out.print("  ");                for (j = 1; j <= n + 2 * i + 1; j++)                    if (i == 1 - (n >> 1))                        System.out.print(" *");                    else if (j == 1 || j == n + 2 * i + 1)                        System.out.print(" *");                    else                        System.out.print("  ");                for (j = 1; j <= -1 - 2 * i; j++)                    System.out.print("  ");                for (j = 1; j <= n + 2 * i + 1; j++)                    if (i == 1 - (n >> 1))                        System.out.print(" *");                    else if (j == 1 || j == n + 2 * i + 1)                        System.out.print(" *");                    else                        System.out.print("  ");                System.out.print("\\n");            }    }    public static void main(String[] args) {        System.out.println("Please input the size (n>=4):");        Scanner sc = new Scanner(System.in);        int n = sc.nextInt();        drawHeart(n);    }}//该片段来自于http://byrx.net