在C#中接受小数作为输入时需要帮助 [英] Need help with accepting decimals as input in C#

问题描述

我已经用C#编写了一个程序，该程序运行勾股定理.我希望在允许程序接受用户输入的小数点方面有所帮助.这就是我所拥有的.

I have written a program in C# that runs the Pythagorean Theorem. I would love some help on allowing the program to accept decimal points from the user input. This is what I have.

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

    namespace Project_2
{
class Program
{
    static void Main(string[] args)
    {
        int sideA = 0;
        int sideB = 0;
        double sideC = 0;
        Console.Write("Enter a integer for Side A ");
        sideA = Convert.ToInt16(Console.ReadLine());
        Console.Write("Enter a integer for Side B ");
        sideB = Convert.ToInt16(Console.ReadLine());
        sideC = Math.Pow((sideA * sideA + sideB * sideB), .5);
        Console.Write("Side C has this length...");
        Console.WriteLine(sideC);
        Console.ReadLine();

    }
}
} 

我一直在尝试使用Math.Abs​​等进行研究，以仅接收构建错误.在写路径方面的帮助将不胜感激.

I have been trying to research this by using the Math.Abs and so on only to receive build errors. Help in the write path would be greatly appreciated.

推荐答案

我建议使用Decimal.TryParse.这种模式非常安全，因为它会捕获异常并返回一个布尔值，以确定解析操作是否成功.

I would recommend using Decimal.TryParse. This pattern is very safe since it traps the exceptions and returns a boolean to determine the success of the parse operation.

http://msdn.microsoft.com/zh-我们/library/system.decimal.tryparse.aspx

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