繁体   English   中英

C#代码中的问题(Noob)

[英]Problems in c# code (Noob)

我的程序在给出结果之前关闭,并且年龄差异是错误的。

我到处都检查过,他们说使用Console.Read()Console.ReadLine()Console.ReadKey() ,我什至没有说过,但仍然无法使用。 有人说使用System("PAUSE")但这只是给我一个错误。

它还说,当我输入21岁时,21-12 = 38?

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

namespace ConsoleApplication1
{
    class Program
    {

        static String name;
        static int age;

        static void Main(string[] args)
        {
            Console.WriteLine("Welcome to the application!");
            Console.Write("What's your name? ");

            // Setting the name string to the line read from the console.
            name = Console.ReadLine();

            Console.Write("\n So how old are you " + name + "? ");

            // Doing the same thing we did last time with the age.
            age = Console.Read();

            compareAges();
            Console.Read();
        }

        static void compareAges()
        {
            if(age < 12)
            {
                Console.WriteLine("I'm older than you! I'm 12.");
                Console.ReadLine();
            }
            else if(age == 12)
            {
                Console.WriteLine("We're the same age!!!");
                Console.ReadLine();
            }
            else
            {
                int ageDifference = age - 12;
                Console.WriteLine("You're " + ageDifference + " years older than me!");
                Console.ReadLine();
            }
        }
    }
}

PS对不起,如果我在这里犯了一些缩进错误,但是实际代码的缩进是正确的。

问题出在

age = Console.Read();

好吧, Console.Read()仅读取一个符号 -在您的情况下,字符250 int,并且您有

  '2' - 12 == 38 // '2' == 50

补救措施:读取整个字符串 ,在您的情况下为"21"

  String line = Console.ReadLine(); 

然后将其解析为整数:

  // Parse() is the simplest; TryParse() is a better: 
  // what if a user entered "bla-bla-bla"?
  age = int.Parse(line); 

您的问题在这里:

age = Console.Read();

在这里,您只需将年龄设置为输入字符的ASCII码,因为Read会从控制台读取一个符号并返回它的ASCII码。

应该改为

age = Convert.ToInt32(Console.ReadLine());

这是我的看法。 也许不是最好的,但是它起作用:

using System;
using System.IO;

namespace ConsoleApplication1{
    class Program{
        public static int Main(){
            Program.determineAgeDifference dta = new Program.determineAgeDifference();

            string[] input = new string[2];

            Console.Write("So, what's your name?\n\n>> ");
            input[0] = Console.ReadLine();

            Console.Clear();

            Console.Write("How old are you?\n\n>> ");
            input[1] = Console.ReadLine();

            Console.WriteLine(dta(int.Parse(input[1].TrimStart(' ').TrimEnd(' ')));
            Console.ReadLine();

            return 0;
        }
        private string determineAgeDifference(int age){
             string returnValue = "";

            if (age < 12){
                returnValue = "I'm older than you. I'm 12!";
            }
            else if (age == 12){
                returnValue = "We are the same age!!!";
            }
            else{
                returnValue = ("You're " + (age - 12).ToString() + "Years older than me!");
            }

            return returnValue;
        }
    }
}

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM