Question

所以我想打印一个tic-tac-toe board但是如果没有得到疯狂的结果就无法解决这个问题

#include <iostream>

int main()
{
    const int ROWS = 3;
    const int COLUMNS = 3;

    char board[ROWS][COLUMNS] =
     { {'X', 'O', 'X'},
       {' ', 'O', 'O'},
       {'X', 'X', 'O'} };

    for (int i = 0; i < COLUMNS; i++)
       {
        for (int j = 0; j < ROWS; j++)
        {
            std::cout << board[0][j];
        }

        std::cout << "\n";
       }

}

Answer 1

打印输出从不迭代电路板的行。此外，您已将行和列混合在一起，让外循环（第一个）在ROWS上迭代，在内部在COLUMNS上迭代。

更改

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion '26.0.2'
    dexOptions {
        preDexLibraries = false
        javaMaxHeapSize "4g"
    }
    defaultConfig {
        applicationId "maa.myapp"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 43
        versionName "4.1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
android {
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/LGPL2.1'
    }
}
android {
    configurations.all {
        resolutionStrategy.force 'com.google.code.findbugs:jsr305:1.3.9'
    }
}
dependencies {
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    //notifications
    compile 'com.android.support:recyclerview-v7:26.1.0'
    compile 'com.android.support:appcompat-v7:26.1.0'
    compile 'com.android.support:design:26.1.0'
    compile 'com.github.chrisbanes:PhotoView:2.1.3'
    compile 'com.android.support:cardview-v7:26.1.0'
    compile 'com.android.volley:volley:1.0.0'
    compile 'com.android.support:multidex:1.0.2'
    compile 'com.android.support:support-v4:26.1.0'
    compile 'com.github.bumptech.glide:glide:4.5.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'com.nineoldandroids:library:2.4.0'
    compile 'com.daimajia.slider:library:1.1.5@aar'
    compile 'com.google.android.gms:play-services-ads:11.8.0'
    compile 'com.google.firebase:firebase-core:11.8.0'
    compile 'com.google.firebase:firebase-messaging:11.8.0'
    compile 'com.firebase:firebase-jobdispatcher:0.6.0'
    compile 'com.vodyasov:amr:0.5'
    compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.7'
    compile 'com.google.guava:guava:23.6-android'
    testCompile 'junit:junit:4.12'
    compile 'com.squareup:otto:1.3.8'
}
apply plugin: 'com.google.gms.google-services'

到

for (int i = 0; i < COLUMNS; i++) {
  for (int j = 0; j < ROWS; j++) {
    std::cout << board[0][j];
  }
  std::cout << "\n";
}

Answer 2

您只是反复打印第一行，即std::cout << board[0][j];

应该是std::cout << board[i][j];。

Answer 3

您似乎使用了错误的第一个索引，0而不是i！所以替换你的行

std::cout << board[0][j];

与

std::cout << board[i][j];

它工作正常！

P.S。在2003年，我写了我的毕业论文与“博弈论”，其中一个最重要的例子是tic-tac-toe游戏，我在Visual Basic 97中实现了动画，音频和非失败策略电脑播放器。你可能还会看到我的家庭视频，关于与幽灵玩家的tic-tac-toe： https://youtu.be/1kL-1lqAt6Y

如何迭代多维数组

3 个答案: