Question

所以我试图制作一个脚本，用户输入他们需要行驶的里程数和他们旅行的每小时英里数，然后脚本输出他们必须经过的剩余时间和小时数。我一直试图用％来找到行进里程的剩余部分/ MPH，但输出错误的数字。无论如何只能从两个分数中得到小数？例如，如果我做100/65我得到大约1.538的输出，我想只使用0.538。但是当我使用100％65时，我得到35.这是我当前的脚本供参考：

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

namespace TimeCalculator
{
     class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Welcome to the Travel Time Calculator");
            string answer;
            //creates variable for the answer
            do
            //creates loop to continue the application
            {
                string grade;
               //Console.WriteLine(100-(int)((double)100/65)*65);
                Console.WriteLine(" ");
                Console.Write("Enter miles: ");
                Decimal val1 = Convert.ToDecimal(Console.ReadLine());
               //converts input to decimal allowing user to use decimals
                Console.Write("Enter miles per hour: ");
                Decimal val2 = Convert.ToDecimal(Console.ReadLine());
                //converts input to decimal allowing user to use decimals
                Console.WriteLine(" ");
                Console.WriteLine("Estimated travel time");
                Console.WriteLine("Hours: " + (((int)val1 / (int)val2)));
                //converts values to integers and divides them to give hours traveled
                //double floor1 = Math.Floor(((double)val1/(double)val2));
                 Console.WriteLine("Minutes: " + (Decimal.Remainder((decimal)val1, (decimal)val2)));
            //converts values to double and gets the remainder of dividing both values to find minutes
            Console.WriteLine();
            //enters one line
            Console.Write("Continue? (y/n): ");
            answer = Console.ReadLine();
            //the string is equal to what the user inputs
            Console.WriteLine();
        }
        while (answer.ToUpper() == "Y");
        //if y, the application continues

}
}

Answer 1

100/65是integer division。你需要的是

double d = (100d / 65) % 1;

这将为您提供0.53846153846153855

Answer 2

如果你想要从初始值开始的小时和分钟，那么这应该为你做（你可能需要一些明确的演员，这是未经测试的）

var result = va1 / val2;   
var hours = Math.Floor(result);
var minutes = (result - hours) * 60;

如何获得两个数字的小数余数？

2 个答案: