C#'未分配的局部变量'?

时间:2012-12-31 11:32:07

标签: c# visual-studio variables console

我尝试制作一段代码,最后掷骰子以决定哪个角色获胜并继续说有错误(使用未分配的局部变量' skillmodifier ') &安培; (使用未分配的局部变量' strengthmodifier ')。我真的很感激任何帮助。 PS我只是在Visual Studio 2010上进行了一段时间的编程。请帮我找到解决这个问题的方法,问题出现是因为我使用 变量 '强度修改器'和'技能修饰符'两次。谢谢,你的忠实,Vikash。 我将粘贴下面的任务breif和之后的代码:

任务3确定遭遇的结果 当两个角色之间遇到结果​​时,结果由以下确定 过程:

•计算两个字符的强度属性之间的差异

•将此差值除以5,然后向下舍入以创建“强度修改器”

•对技能属性重复该过程以创建“技能修饰符”

•每位玩家掷出6面骰子。

•如果两个骰子上的得分相同,则不做任何更改

•如果得分不相同,得分最高的玩家会增加'力量 修饰符'强度值'和'技能修饰符'到他们的技能值 字符

•骰子得分较低的玩家从中减去这些修饰符 角色的力量和技能值

•如果技能值变为负值,则将其存储为零

•如果强度值变为零或负值,则角色会死亡。

该计划应该:

* •允许用户输入两个字符的力量和技能。

•使用上述过程显示遭遇的结果。 设计一种算法来描述这个过程。编写,测试和评估代码。 *

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;

        namespace Task3
       {
         class Program
          {

            static void loopfsto()
             {

            Console.WriteLine("Please enter a value of strength, and then press enter");
            string csto = Console.ReadLine(); // Read string from console
            int csto1;
            if (int.TryParse(csto, out csto1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + csto1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfsto();
            }
        }

        static void loopfsko()
        {
            Console.WriteLine("Please enter a value of skill, and then press enter");
            string csko = Console.ReadLine(); // Read string from console
            int csko1;
            if (int.TryParse(csko, out csko1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + csko1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfsko();
            }
            Console.Clear();
        }

        static void loopfstt()
        {
            Console.WriteLine("Please enter a value of strength for, and then press enter");
            string cstt = Console.ReadLine(); // Read string from console
            int cstt1;
            if (int.TryParse(cstt, out cstt1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + cstt1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfstt();
            }
            Console.Clear();
        }

        static void loopfskt()
        {
            Console.WriteLine("Please enter a value of skill for, and then press enter");
            string cskt = Console.ReadLine(); // Read string from console
            int cskt1;
            if (int.TryParse(cskt, out cskt1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + cskt1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfskt();
            }

        }

        static void Main(string[] args)
        {

            string Character1;
            string Character2;
            int strengthmodifiertoround;
            int skillmodifiertoround;
            int strengthmodifier;
            int skillmodifier;
            Console.Title = "Strength and Skill";

            Console.WriteLine("Welcome to Strength and Skill, please press enter to continue.");
            Console.ReadKey();
            Console.Clear();

            Console.WriteLine("Please enter a name for character 1, then press enter.");
            Character1 = Console.ReadLine();
            Console.Clear();

            Console.WriteLine("Please enter a name for character 2, then press enter.");
            Character2 = Console.ReadLine();
            Console.Clear();

            Console.WriteLine("Please enter a value of strength for " + Character1 + ", and then press enter");
            string csto = Console.ReadLine(); // Read string from console
            int csto1;
            if (int.TryParse(csto, out csto1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + csto1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfsto();
            }


            Console.Clear();


            Console.WriteLine("Please enter a value of skill for " + Character1 + ", and then press enter");
            string csko = Console.ReadLine(); // Read string from console
            int csko1;
            if (int.TryParse(csko, out csko1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + csko1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfsko();
            }
            Console.Clear();

            Console.WriteLine(Character1 + " has a strength of " + csto1 + " and a skill of " + csko1 + ".");
            Console.ReadKey();
            Console.Clear();

            Console.WriteLine("Please enter a value of strength for " + Character2 + ", and then press enter");
            string cstt = Console.ReadLine(); // Read string from console
            int cstt1;
            if (int.TryParse(cstt, out cstt1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + cstt1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfstt();
            }
            Console.Clear();



            Console.WriteLine("Please enter a value of skill for " + Character2 + ", and then press enter");
            string cskt = Console.ReadLine(); // Read string from console
            int cskt1;
            if (int.TryParse(cskt, out cskt1)) // Try to parse the string as an integer
            {
                Console.WriteLine("Your chosen number is " + cskt1 + ".");
                Console.ReadKey();
            }
            else
            {
                Console.Clear();
                Console.WriteLine("Not an integer!");
                Console.ReadKey();
                Console.Clear();
                loopfskt();
            }
            Console.Clear();

            Console.WriteLine(Character2 + " has a strength of " + cstt1 + " and a skill of " + cskt1 + ".");
            Console.ReadKey();
            Console.Clear();
//--- Finds out if strength for character 1 is higher than 2 or vice versa. Then finds difference between two and makes a variable called strengthmodifier ---//

            {
                if (csto1 < cstt1)
                {
                    strengthmodifiertoround = cstt1 - csto1;
                    strengthmodifier = strengthmodifiertoround / 5;   
                }
                if (cstt1 < csto1)
                {
                    strengthmodifiertoround = csto1 - cstt1;
                    strengthmodifier = strengthmodifiertoround / 5;
                }
            }
//--- Finds out if skill for character 1 is higher than 2 or vice versa. Then finds difference between two and makes a variable called skillmodifier ---//

            {
                if (csko1 < cskt1)
                {
                    skillmodifiertoround = cskt1 - csko1;
                    skillmodifier = skillmodifiertoround / 5; 
                }
                if (cskt1 < csko1)
                {
                    skillmodifiertoround = csko1 - cskt1;
                    skillmodifier = skillmodifiertoround / 5;
                }
            }
//--- Tells user to put input and roll a virtual dice (which is actually creating a number between 1 and 6) ---//
            Console.WriteLine(Character1 + ", please press enter to roll dice");
            Console.ReadKey();
            Random rand = new Random();
            int character1RandomNumber = rand.Next(1, 6);

            Console.WriteLine(Character2 + ", please press enter to roll dice");
            Console.ReadKey();
            Random rand1 = new Random();
            int character2RandomNumber = rand1.Next(1, 6);
            Console.WriteLine(Character1 + " rolled a " + character1RandomNumber + " and " + Character2 + " rolled a " + character2RandomNumber + ".");
            Console.ReadKey();
            if (character1RandomNumber < character2RandomNumber)
            {
                int char2st = cstt1 + strengthmodifier;
                int char2sk = cskt1 + skillmodifier;
                int char1st = csto1 - strengthmodifier;
                int char1sk = csko1 - skillmodifier;
            }
            if (character2RandomNumber < character1RandomNumber)
            {

            }

                int ch2st = cstt1 - strengthmodifier;
                int ch2sk = cskt1 - skillmodifier;
                int ch1st = csto1 + strengthmodifier;
                int ch1sk = csko1 + skillmodifier;



        }
    }
}

5 个答案:

答案 0 :(得分:4)

实际上,我认为你的问题是因为s​​killmodifier和strengthmodifier没有在所有代码路径上获得赋值。即。它们仅被分配来自if子句中的值,并且visual studio无法确定它们是否被分配用于所有可能的结果。此警告不应该停止您的代码编译,但如果您希望它消失,您可以执行类似

的操作
int skillmodifiertoround = 0;

而不仅仅是

int skillmodifiertoround;

现在,skillmodifiertoround被赋予声明值。

编辑:“此警告不应停止代码编译” - 显然它会阻止程序在c#中正确编译,但vb中的相同错误只会发出警告但仍会编译。

答案 1 :(得分:2)

真的很简单

int skillmodifier;

你需要分配它 - 它可以给它一个值,甚至是默认值 - 然后才能使用它。否则,该程序不知道它具有什么价值。

类似

int skillmodifier = -1;

会为你修好。

答案 2 :(得分:1)

当您声明int skillmodifier将其声明为默认值时,例如。 int skillmodifier = 0;

strengthmodifier做同样的事情,你应该好好去!

问题是编译器可以在没有设置这些参数的情况下检测执行代码的方法。

答案 3 :(得分:0)

  

C#中的局部变量必须在使用前初始化。

来自MSDN

另见questio Why aren't unassigned local variables automatically initialized?

对于未知类型的泛型,请使用default关键字

答案 4 :(得分:0)

我认为其他人已经给了你答案,但我发现了别的东西。

而不是 //方法 如果(的TryParse) { //完成 } 其他 //循环

你应该将方法转换为返回int的方法然后......

int csko = loopCsko()

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