C++获取数组大小和多维数组操作详解

int myNumbers[5] = {10, 20, 30, 40, 50};
cout << sizeof(myNumbers);

int myNumbers[5] = {10, 20, 30, 40, 50};
int getArrayLength = sizeof(myNumbers) / sizeof(int);
cout << getArrayLength;

int myNumbers[5] = {10, 20, 30, 40, 50};
for (int i = 0; i < 5; i++) {
  cout << myNumbers[i] << "\n";
}

int myNumbers[5] = {10, 20, 30, 40, 50};
for (int i = 0; i < sizeof(myNumbers) / sizeof(int); i++) {
  cout << myNumbers[i] << "\n";
}

int myNumbers[5] = {10, 20, 30, 40, 50};
for (int i : myNumbers) {
  cout << i << "\n";
}

string letters[2][4];

string letters[2][4] = {
  { "A", "B", "C", "D" },
  { "E", "F", "G", "H" }
};

string letters[2][2][2] = {
  {
    { "A", "B" },
    { "C", "D" }
  },
  {
    { "E", "F" },
    { "G", "H" }
  }
};

string letters[2][4] = {
  { "A", "B", "C", "D" },
  { "E", "F", "G", "H" }
};

cout << letters[0][2];  // 输出 "C"

string letters[2][4] = {
  { "A", "B", "C", "D" },
  { "E", "F", "G", "H" }
};
letters[0][0] = "Z";

cout << letters[0][0];  // 现在输出 "Z" 而不是 "A"

string letters[2][4] = {
  { "A", "B", "C", "D" },
  { "E", "F", "G", "H" }
};

for (int i = 0; i < 2; i++) {
  for (int j = 0; j < 4; j++) {
    cout << letters[i][j] << "\n";
  }
}

string letters[2][2][2] = {
  {
    { "A", "B" },
    { "C", "D" }
  },
  {
    { "E", "F" },
    { "G", "H" }
  }
};

for (int i = 0; i < 2; i++) {
  for (int j = 0; j < 2; j++) {
    for (int k = 0; k < 2; k++) {
      cout << letters[i][j][k] << "\n";
    }
  }
}

// 我们放置 “1” 来表示那里有一艘船。
bool ships[4][4] = {
  { 0, 1, 1, 0 },
  { 0, 0, 0, 0 },
  { 0, 0, 1, 0 },
  { 0, 0, 1, 0 }
};

int hits = 0;
int numberOfTurns = 0;

// 允许玩家继续进行，直到他们击中了所有四艘船
while (hits < 4) {
  int row, column;

  cout << "选择坐标\n";

  // 要求玩家输入一行
  cout << "选择 0 到 3 之间的行号：";
  cin >> row;

  // 要求玩家输入一列
  cout << "选择 0 到 3 之间的列号：";
  cin >> column;

  // 检查这些坐标是否存在船只
  if (ships[row][column]) {
    // 如果玩家击中了一艘船，将其删除并将值设置为零。
    ships[row][column] = 0;

    // 增加击中计数器
    hits++;

    // 告诉玩家他们击中了一艘船以及剩下多少艘船
    cout << "命中！剩下 " << (4-hits) << " 艘船。\n\n";
  } else {
    // 告诉玩家他们没击中
    cout << "未命中\n\n";
  }

  // 计算玩家进行了多少轮
  numberOfTurns++;
}

cout << "胜利！\n";
cout << "你在 " << numberOfTurns << " 轮内获胜";