我正在嘗試制作一個交互式文本游戲，但是當我嘗試播放器輸入時，它說（發生異常：CLR/System.FormatException）代碼>>

Question

using System;

namespace Coding_basics
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Title = " To Infinity";
            Console.ForegroundColor = ConsoleColor.Green;
           int decision  = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine("Welcome");
            Console.ReadLine();
            Console.WriteLine("You have entered the program, press 1 to proceed or press 2 to leave");
            Console.ReadLine();
            if (decision == 1 )  { Console.WriteLine("Good luck...");
            } 

            if (decision == 2) { Environment.Exit(0);

            }
            Console.ReadKey();

我期待文本出現，然后能夠選擇 1 或 2 繼續或關閉游戲，請解釋我做錯了什么。 謝謝

Answer 1

您有太多不需要的Console.ReadLine() ，您還盡早聲明和閱讀decision 。 您可以嘗試以下操作：

using System;

namespace Coding_basics
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.Title = "To Infinity";
            Console.ForegroundColor = ConsoleColor.Green;

            Console.WriteLine("Welcome");
            Console.WriteLine("You have entered the program, press 1 to proceed or press 2 to leave");
            
            int decision  = Convert.ToInt32(Console.ReadLine());
            
            if (decision == 1 )
            {
                Console.WriteLine("Good luck...");
            }
            if (decision == 2)
            {
                Environment.Exit(0);
            }
            
            Console.ReadKey();
        }
    }   
}