C＃是双未按预期 [英] C# double not working as expected

问题描述

据我所知，双是一个小数。
在下面的程序输出为1，即使我认为这将是1.05重复。

I understand that a double is a decimal. In the following program the output is 1 even though I thought it would be 1.05 repeating.

static void Main (string[] args)
{
double d = 19 / 18;
Console.WriteLine(d);
Console.ReadKey();
}

我误解双？

Am I misunderstanding double?

推荐答案

您误解整数运算。

Integer-19 / Integer-18 results in an Integer with value 1.

（所分配的值双是不相关。计算结果的整数）

(that you assign the value to a double is not relevant. The calculation results in an Integer).

要修复它，使用：

double d = 19.0 / 18.0;

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