c# - 一维数组中的条件语句

Question

for (int i = 0; i < NumberOfPlayers; i++)
{
     NextMove = playerPositions[i] + DiceThrow();

     while (RocketInSquare(NextMove) == true)
          playerPositions[i] = NextMove++;

     playerPositions[i] = NextMove;
}

我在这个 for 循环中遇到了一些麻烦。有没有办法让我做到这一点：

NextMove = playerPositions[i] + DiceThrow();

只在for循环中运行一次？

Answer 1

您可以包含一个flag或counter与一个if块组合。

if (counter == 0)
{
    NextMove = playerPositions[i] + DiceThrow();
    counter++;
}

firstIteration( bool firstIteration)的另一种方法，

firstIteration = false; 

....

for (...)
{
    if (firstIteration)
    {
        NextMove = playerPositions[i] + DiceThrow();
        firstIteration = !firstIteration; // Toggle the flag 
    }
}

Answer 2

保留一面旗帜

    bool flag = false;    
    for (int i = 0; i < NumberOfPlayers; i++)
    {
    if(!flag)
    {
        NextMove = playerPositions[i] + DiceThrow();
        flag = true;  
    } 

    while (RocketInSquare(NextMove) == true)
        {
            playerPositions[i] = NextMove++;

        }
        playerPositions[i] = NextMove;

    }

Answer 3

您应该将该行移出循环。

NextMove = playerPositions[0] + DiceThrow(); 
for (int i = 0; i < NumberOfPlayers; i++)
{
     while (RocketInSquare(NextMove))
          NextMove++;

     playerPositions[i] = NextMove;
}