小编use*_*155的帖子

我正在做一个用开尔文,摄氏和华氏温度转换温度的简单程序,但是在用开尔文做任何事情时我都会遇到这个错误:

Cannon implicitly convert type 'double' to 'float'

发生错误的行:

public static float FahrenheitToKelvin(float fahrenheit)
{
    return ((fahrenheit - 32) * 5) / 9 + 273.15;
}

按钮点击:

private void button1_Click(object sender, EventArgs e)
{
    var input = float.Parse(textBox1.Text);
    float FahrenResult = FahrenheitToCelsius(input);
    textBox2.Text = FahrenResult.ToString();
    float KelvinResult = FahrenheitToKelvin(input);
    textBox3.Text = KelvinResult.ToString();
}

我试图做的测试方法:

[TestMethod]
public void fahrenheitToKelvinBoiling()
{
    float fahrenheit = 212F;
    float expected = 373.15F; // TODO: Initialize to an appropriate value
    float actual;
    actual = Form1.FahrenheitToKelvin(fahrenheit);
    Assert.AreEqual(Math.Round(expected, …