模量Visual Studio 2013

Question

I was just wondering how I could state if x + y + z % 2 == 0 BUT only do this statement IF the three values aren't set to 0. I require the values to be 0.

Example of my code & posStatus may hold variables of the value 0. The problem is when all three of them are 0 an issue occurs. The user and program over time fill in these values.

else if (posStatus[0] + posStatus[4] + posStatus[8] % 2 == 0)
{
    if (posStatus[0] == 0)
    {
        posStatus[0] = 2;
        return;
    }
    else if (posStatus[4] == 0)
    {
        posStatus[4] = 2;
        return;
    }
    else if (posStatus[8] == 0)
    {
        posStatus[8] = 2;
        return;
    } 
}

Answer 1

if((x!=0 && y!=0 && z!=0) && x + y + z % 2 == 0)
    //do your stuff

Logical operators in C# are converted to series of if-else constructions during compilation, so if first condition is not true, other ones won't be checked.

Answer 2

if(posStatus[0] != 0 &&
   posStatus[4] != 0 &&
   posStatus[8] != 0 &&
   (posStatus[0] + posStatus[4] + posStatus[8]) % 2 == 0)
{
    // Do something
}

Answer 3

if((posStatus[0]!=0 && posStatus[4]!=0 && posStatus[8]!=0) && 
   (posStatus[0] + posStatus[4] + posStatus[8]) % 2 == 0)
{

}