c# - 在方法类的消息框中显示变量

Question

我有一个问题，当用户单击我的表单中的按钮时，我如何从我的方法类中显示变量小时，然后变量/术语将在消息框中显示它。

这是我的代码

// Form1. The window form
private void button1_Click(object sender, EventArgs e)
{
    ClassName.Hours();
}

// My ClassName with method Hours()
public static void Hours() {
    var citiesDistance = new Dictionary<string, int> { 
        {"Place1",10},
        {"Place2",20},
        {"Place3",30},
    };

    var cities = "Place1";
    var length = citiesDistance[cities];

    var speed = 100;

    var hours = length / speed;

    return;
}

Answer 1

你是这个意思吗？

表单代码:

// Form1. The window form
private void button2_Click(object sender, EventArgs e)
{
    MessageBox.Show(ClassName.Hours("Place1").ToString());
}

类代码:

    // My ClassName with method Hours()
    public class ClassName
    {

        // My ClassName with method Hours()
    public static decimal Hours(string place)
    {
        var citiesDistance = new Dictionary<string, int> 
        { 
            {"Place1",10},
            {"Place2",20},
            {"Place3",30},
        };


        var length = citiesDistance[place];

        decimal speed = 100;

        decimal hours = length / speed;

        return hours;

    }

如果您愿意，也可以将这些小数点更改为 double 。电话 his is a good discussion其中何时使用。