The problem is the code where is wrong-CodePudding

 class Program 
{
The static void Main (string [] args) 
{
Say (); 
Console.ReadKey(); 
} 
Public static int Say () 
{
Console. WriteLine (" hello, everyone, I am Say way!" ); 
} 

}

CodePudding user response:

Public static int Say () returns the int value, you won't give him the return value

 
Public static int Say () 
{
Console. WriteLine (" hello, everyone, I am Say way!" ); 
return 0; 
}

Or into a public static void Say ()

CodePudding user response:

Say the function () the return value of the int to void