呵呵

　　TicTacToe。

　　对的我还有进步空间一定是这样。

package What;

import java.util.Scanner;
import java.util.Random;

public class Run {
    
    // 数组输入和随机三个必需对象。
    static String[] panel = new String[9];
    static Scanner input = new Scanner(System.in);
    static Random generator = new Random();
    
    static void drawPanel(String[] panel) {
        /* 绘制棋盘，接受一个数组，按照数字组内容绘制
         * 方法也是有点二逼那种。
         */
        
        System.out.println(panel[0] + " " + panel[1] + " " + panel[2]);
        System.out.println(panel[3] + " " + panel[4] + " " + panel[5]);
        System.out.println(panel[6] + " " + panel[7] + " " + panel[8]);
    }
    
    static int playerMove(int i) {
        // 玩家落子。简单检查格子是否已经被占用。
        if (panel[i-1] == "○" || panel[i-1] == "×") {
            System.out.println("这个地方已经落子了，不能睁大你的狗眼仔细看看么？");
            return 0;
        } else {
            panel[i-1] = "○";
            return 1;
        }
    }
    
    static void comMove() {
        // 电脑落子。随机生成0-8的整数来落子，如果已经有子就continue掉重新生成随机数。
        while (true) {
            int location = generator.nextInt(9);
            if (panel[location] == "○" || panel[location] == "×") {
                continue;
            } else {
                panel[location] = "×";
                break;
            }
        }
    }
    
    static int checkWin() {
        /*  检查获胜，方法简直不能更2B……
         *  呜呜呜我想要列表嵌套……
         */
        if (panel[0] == panel[1] & panel[1]== panel[2] & panel[0] != "□") {
            return 1;
        } else if (panel[3] == panel[4] & panel[4]== panel[5] & panel[3] != "□") {
            return 1;
        } else if (panel[6] == panel[7] & panel[7]== panel[8] & panel[6] != "□") {
            return 1;
        } else if (panel[0] == panel[3] & panel[3]== panel[6] & panel[0] != "□") {
            return 1;
        } else if (panel[1] == panel[4] & panel[4]== panel[7] & panel[1] != "□") {
            return 1;
        } else if (panel[2] == panel[5] & panel[5]== panel[8] & panel[2] != "□") {
            return 1;
        } else if (panel[0] == panel[4] & panel[4]== panel[8] & panel[0] != "□") {
            return 1;
        } else if (panel[2] == panel[4] & panel[4]== panel[6] & panel[2] != "□") {
            return 1;
        } else {
            return 0;
        }
    }
    
    static int checkFull() {
        /* 检查棋盘是否已经被占满。
         * 迭代棋盘内容，如果有空格子就立刻返回0。
         */
        for (int i=0; i<9; i++) {
            if (panel[i] == "□") {
                return 0;
            }
        }
        return 1;
    }
    
    
    public static void main(String[] args) {
        //没脸写注释，虽然也不难看懂不是不难看是不难看懂其实挺难看的。
        System.out.println("初始化棋盘中……");
        for (int i=0; i<9; i++) {
            panel[i] = "□";
        }
        System.out.println("初始化完毕。");
        
        while (true) {
            System.out.println(); // 打印一个空行。
            drawPanel(panel);     // 绘制棋盘。
            
            System.out.print("落子(1-9)：");
            int playermove = input.nextInt();
            if (playerMove(playermove) == 0) {
                continue;
            }
            
            System.out.println();
            drawPanel(panel);
            if (checkWin() == 1) {
                System.out.println("你赢了！");
                break;
            }
            if (checkFull() == 1) {
                System.out.println("平局了！");
                break;
            }
            
            System.out.println("\n电脑的回合：");
            comMove();
            if (checkWin() == 1) {
                drawPanel(panel);
                System.out.println("电脑赢了！");
                break;
            }
            if (checkFull() == 1) {
                System.out.println("平局了！");
                break;
            }
        }
    }
}