长度计算器英尺和英寸

Question

在我的 if 语句 (LengthCalculatorOption == 1) 中，我想将例如 187.96 厘米转换为英尺和英寸，例如 6 英尺 2 英寸。我怎么做？在我当前的代码中，它显示 6.17 英尺且始终为 0 英寸。我不知道为什么。

static void Main(string[] args) {

    double Centimetres = 0.0, Feet = 0.0, Inches = 0.0;
    string AnotherConversion = null;
    string LengthCalculatorMenu;
    int LengthCalculatorOption;

    do {
        LengthCalculatorMenu = ("Enter 1) Convert centimetres to feet and inches:"
                           +  "\nEnter 2) Convert feet and inches to centimetres:");
        Console.Write(LengthCalculatorMenu);
        LengthCalculatorOption = int.Parse(Console.ReadLine());

        if (LengthCalculatorOption == 1) {
            Console.WriteLine("Please Enter the Centimetres(cm) that you wish to convert to feet and inches");
            Centimetres = double.Parse(Console.ReadLine());

            Feet = (Centimetres / 2.54) / 12;
            Inches = (Centimetres / 2.54) - (Feet * 12);
            Centimetres = ((Feet * 12) + Inches) * 2.54;
            Console.WriteLine("\nThe equivalent in feet and inches is {0:C} ft {1:G} ins", Feet, Inches);

            Console.Write("\nWould you like to make an another conversion? \n\n(Enter Y to make an another conversion/Enter any other key to exit):");
            AnotherConversion = Console.ReadLine();
        } else if (LengthCalculatorOption == 2) {
            Console.WriteLine("Please Enter the Feet");
            Feet = double.Parse(Console.ReadLine());
            Console.WriteLine("Please Enter the Inches");
            Inches = double.Parse(Console.ReadLine());

            Centimetres = ((Feet * 12) + Inches) * 2.54;
            Console.WriteLine("\nThe equivalent in centimetres is {0:G}cm", Centimetres);

            Console.Write("\nWould you like to make an another conversion? \n\n(Enter Y to make an another conversion/Enter any other key to exit):");
            AnotherConversion = Console.ReadLine();
        } else {
            Console.WriteLine("\n\a\t Invalid Option!Option Must be 1 or 2");
        }
    } while (AnotherConversion == "y" || AnotherConversion == "Y");

Answer 1

试试这个：

Feet = (Centimetres / 2.54) / 12;
int iFeet = (int)Feet;
inches = (Feet - (double)iFeet) * 12;

稍微详细一点：

您将英尺定义为双精度值，这意​​味着它将是一个十进制值。因此，由于您要除以 12，它可以成为十进制表示。

我的代码所做的是将英尺转换为整数（在这种情况下会将其四舍五入为 6）。然后我们减去双倍版本的 Feet（在这种情况下为 6.17），等于 0.17（余数）。我们将其乘以 12 以将 0.17 英尺转换为英寸

编辑

根据 Scott 的评论进行扩展，这将是一种不同的方式

int totalInches = (Centimetres / 2.54); // This will take a floor function of Centimetres/2.54
int Feet = (totalInches - totalInches % 12) / 12; // This will make it divisible by 12
int inches = totalInches % 12; // This will give you the remainder after you divide by 12

Answer 2

保持为double，使用：

double inp = 12.75; // e.g.

double feet = Math.Floor(inp);
double inches = (inp - feet) * 12.0;

Answer 3

试试这个：

 double F = Math.Floor(Centimetres * 0.0328084);
 Feet = Centimetres * 0.0328084;
 Inches = (Feet - F) * 12;

1 英尺 = 0.30480 米

Answer 4

要以厘米为单位计算英尺和英寸的值，您可能需要这样做：

double centimeters = 187.96;
double inches = centimeters/2.54;
double feet = Math.Floor(inches / 12);
inches -= (feet*12);

一般来说，一个人应该转换到最基本的水平，然后计算你的方式。这样，您只需进行一次转换工作，而不必重复转换计算。在本例中，我将厘米简单地转换为英寸，然后计算以英寸为单位的英尺数，然后从最终的英寸值中减去那么多。

所以，如果我有 38 英寸，我将有 Math.Floor(38 / 12) 英尺或 3。然后 inches 将设置为 38 - (3*12)，即 2，最终结果为 3 英尺，2英寸。

Answer 5

一些通用方法：

public static class Converter
{
    public static (int Feet, double Inches) CentimetresToFeetInches(double centimetres)
    {
        var feet = centimetres / 2.54 / 12;
        var iFeet = (int)feet;
        var inches = (feet - iFeet) * 12;

        return (iFeet, inches);
    }

    public static string CentimetresToFeetInchesString(double centimetres, string footSymbol = " foot", string inchesSymbol = " inches")
    {
        (var feet, var inches) = CentimetresToFeetInches(centimetres);
        return $"{feet:N0}{footSymbol}, {inches:N0}{inchesSymbol}";
    }
}

用法：

(var feet, var inches) = Converter.CentimetresToFeetInches(178);
//feet == 5
//inches == 10.078740157480315

var feetInchesString = Converter.CentimetresToFeetInchesString(178);
//5 foot, 10 inches