Dart -如何连接字符串和整数

rslzwgfq 于 2023-10-13 发布在其他

关注(0)|答案(3)|浏览(96)

我如何连接我的String和行中的int：print('Computer is moving to ' + (i + 1));和print("Computer is moving to " + (i + 1));
我无法弄清楚，因为错误一直在说“参数类型'int'不能分配给参数类型'String'”

void getComputerMove() {
    int move;

    // First see if there's a move O can make to win
    for (int i = 0; i < boardSize; i++) {
      if (_mBoard[i] != humanPlayer && _mBoard[i] != computerPlayer) {
        String curr = _mBoard[i];
        _mBoard[i] = computerPlayer;
        if (checkWinner() == 3) {
          print('Computer is moving to ' + (i + 1));
          return;
        } else
          _mBoard[i] = curr;
      }
    }

    // See if there's a move O can make to block X from winning
    for (int i = 0; i < boardSize; i++) {
      if (_mBoard[i] != humanPlayer && _mBoard[i] != computerPlayer) {
        String curr = _mBoard[i]; // Save the current number
        _mBoard[i] = humanPlayer;
        if (checkWinner() == 2) {
          _mBoard[i] = computerPlayer;
          print("Computer is moving to " + (i + 1));
          return;
        } else
          _mBoard[i] = curr;
      }
    }
  }

dart

来源：https://stackoverflow.com/questions/66375938/dart-how-to-concatenate-a-string-and-my-integer

3条答案

按热度按时间

0md85ypi1#

使用字符串插值：

print("Computer is moving to ${i + 1}");

或者直接调用toString（）：

print("Computer is moving to " + (i + 1).toString());

赞(0）回复(0）举报 2023-10-13

xwbd5t1u2#

你可以简单地使用.toString将整数转换为String：

void main(){
     
    String str1 = 'Welcome to Matrix number ';
    int n = 24;
     
    //concatenate str1 and n
    String result = str1 + n.toString();
     
    print(result);
}

你的情况是这样的：

print("Computer is moving to " + (i + 1).toString());

赞(0）回复(0）举报 2023-10-13

bzzcjhmw3#

var intValue = Random().nextInt(5)+1;   // 1 <--> 5
 var string = "the nb is $intValue random nb ";

赞(0）回复(0）举报 2023-10-13

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Dart -如何连接字符串和整数

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