Judge a few days in a certain year

Console.WriteLine ("Please enter the year:"); Try            {                intYear = Convert.ToInt32 (Console.ReadLine ());//It 's possible to throw an exceptionConsole.WriteLine ("Please enter the month:"); Try                {                    intmonth = Convert.ToInt32 (Console.ReadLine ());//1-12//It 's possible to throw an exception                    if(Month >=1&& Month <= A)                    {                        intDay =0; Switch(month) { Case 1:                             Case 3:                             Case 5:                             Case 7:                             Case 8:                             Case  A: Day= to;  Break;  Case 2:                                //determine if a leap year                                if(Year%4==0) || (Year%4==0&& Year% -!=0) ) { Day= in; }                                Else{ Day= -; }                                 Break; default: Day= -;  Break; } Console.WriteLine ("{ 0} year {1} month has {2} days", year, month, day); }//if the parentheses of the Judgment                    Else{Console.WriteLine ("the month entered is not required"); }                }//the parentheses of the try month                Catch//with Month package{Console.WriteLine ("Incorrect month entered"); }            }//parentheses for try year            Catch //matching with the year try{Console.WriteLine ("the year you entered is incorrect"); } console.readkey ();

Judge a few days in a certain year