C＃模数导致程序出现问题 [英] C# Modulus causing issues in program

问题描述

Relevent misc info：Project = Tic Tac Toe（控制台应用程序）

我的问题如下：

我有一个最初填充0的数组，必须保持0为0，除非用户移动（然后它将变为1）或计算机移动然后它变为2。 />


最初，如果一行/列/对角线为空（3 0），那么如果你进行计算0 + 0 + 0％2，你会发现它等于0与我的代码冲突..



所以我建议只确保三个collumns / rows / diags都不是0但是这导致计算机不写如果它们都是0，则得到列/行/诊断。

代码示例：

  else   if （posStatus [ 2 ]！=  0 && posStatus [ 5 ]！=  0 && posStatus [ 8 ]！=  0 && （posStatus [ 2 ] + posStatus [ 5 ] + posStatus [ 8 ]％ 2  ==  0 ））
 {
  if （posStatus [ 2 ] ==  0 ）
 {
 posStatus [ 2 ] =  2 ; 
  return ; 
} 
  else   if （posStatus [ 5 ] ==  0 ）
 {
 posStatus [ 5 ] =  2 ; 
  return ; 
} 
  else   if （posStatus [ 8 ] ==  0 ）
 {
 posStatus [ 8 ] =  2 ; 
  return ; 
} 

我相信如果最初的if else条件被更改，我的问题将得到解决，但我不知道如何。



提前致谢。

解决方案

一个基本错误：

Quote：

else if（posStatus [2]！= 0&& posStatus [5]！= 0&& posStatus [8]！= 0&&

（posStatus [2] + posStatus [5] + posStatus [8]％2 == 0））

如果posStatus [2]！= 0且posStatus [2]> 0则则无法获得

posStatus [2] + STG == 0除非STG< 0



因此，如果您的情况下情况永远不会成立。



退房在哪里根据需要放置括号和运算符优先级。



http://msdn.microsoft.com/en-us/library/aa691323%28v= vs.71％29.aspx [ ^ ]



[根据要求更新]

附有模数运算符的括号，因为它的如果（posStatus [2]！= 0&& ;; posStatus [5]！= 0&& posStatus [8]！= 0&& （posStatus [2] + posStatus [5] + posStatus [8]）％2 == 0）

Hi,

Relevent misc info: Project = Tic Tac Toe (console app)
My issue is the following:
I have an array that initially is filled with 0's which MUST stay as 0's unless the user takes a move (then it'll become a 1) or the computer makes a move then it becomes a 2.

Originally, if one row/collumn/diagonal was empty (3 0's) then if you do the calculation 0 + 0 + 0 % 2 you'll discover it equals 0 which conflicts with my code..

So I was recommended to just make sure three collumns/rows/diags are not all at 0 but this causes the computer not to write a result in the column/row/diag if they are all 0.
Example of code:

else if (posStatus[2] != 0 && posStatus[5] != 0 && posStatus[8] != 0 && (posStatus[2] + posStatus[5] + posStatus[8] % 2 == 0))
            {
                if (posStatus[2] == 0)
                {
                    posStatus[2] = 2;
                    return;
                }
                else if (posStatus[5] == 0)
                {
                    posStatus[5] = 2;
                    return;
                }
                else if (posStatus[8] == 0)
                {
                    posStatus[8] = 2;
                    return;
                }

I believe that if the initial if else condition is changed my issues will be resolved but I'm not sure how to.

Thanks in advance.

解决方案

a basic mistake:

Quote:

else if (posStatus[2] != 0 && posStatus[5] != 0 && posStatus[8] != 0 &&
(posStatus[2] + posStatus[5] + posStatus[8] % 2 == 0))

if posStatus[2] != 0 and posStatus[2]>0 then it is not possible to have
posStatus[2]+ STG ==0 unless STG<0

therefore else if condition will never be true in your case.

check out where to put your parenthesis and operator precedence as you need.

http://msdn.microsoft.com/en-us/library/aa691323%28v=vs.71%29.aspx[^]

[update on request]
enclose with parenthesis for modulus operator since its precedence higher than addition.

else if (posStatus[2] != 0 && posStatus[5] != 0 && posStatus[8] != 0 && (posStatus[2] + posStatus[5] + posStatus[8]) % 2 == 0)

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