C# 如何将值格式化为没有百分号的百分比？
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How can I format a value as a percentage without the percent sign?
提问by AngryHacker
float f = 0.479f;
Console.WriteLine(f.ToString("p1"));
The output: 47.9 %
产量：47.9%
What should I pass to ToString() in order to remove the percentage sign for output like this:
我应该将什么传递给 ToString() 以删除输出的百分比符号，如下所示：
47.9
47.9
EDIT. I should have mentioned that I am passing the mask to a 3rd party component that does it's thing with it. I can't perform any acrobatics with the numbers unfortunately. It has to be the mask that does the trick.
编辑。我应该提到我正在将掩码传递给与它相关的第 3 方组件。不幸的是，我不能用数字表演任何杂技。必须是面具才能发挥作用。
采纳答案by Dynami Le Savard
I should have mentioned that I am passing the mask to a 3rd party component that does it's thing with it. I can't perform any acrobatics with the numbers unfortunately. It has to be the mask that does the trick.
我应该提到我正在将掩码传递给与它相关的第 3 方组件。不幸的是，我不能用数字表演任何杂技。必须是面具才能发挥作用。
So I assume that you are stuck with Float.ToString(String), and that you cant only edit the p1in f.ToString("p1"). Now that's a tricky one. If you're not afraid of breaking anything related to the changes implied, you could do the following:
所以我假设你被困在了Float.ToString(String)，并且你不能只编辑p1in f.ToString("p1")。现在这是一个棘手的问题。如果您不怕破坏与隐含更改相关的任何内容，则可以执行以下操作：
The "P" numeric format, as documented On MSDN, uses NumericFormatInfo.PercentSymbolin order to write the "%" sign. NumericFormatInfois a member of your current CultureInfo. What you could do, is clone your CurrentCulture, and modify the PercentSymbol to ""like the following:
在“P”的数字格式，如记录在MSDN，用途NumericFormatInfo.PercentSymbol，以写“％”的标志。NumericFormatInfo是您当前CultureInfo. 您可以做的是克隆您的CurrentCulture，然后将 PercentSymbol 修改""为如下所示：
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
float f = 0.479f;
Console.WriteLine(f.ToString("p1")); //will write 47.9%
CultureInfo ci = CultureInfo.CurrentCulture.Clone() as CultureInfo;
ci.NumberFormat.PercentSymbol = "";
System.Threading.Thread.CurrentThread.CurrentCulture = ci;
Console.WriteLine(f.ToString("p1")); //will write 47.9
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
This would be the way to go if you don't want to alter the ToString call.
如果您不想更改 ToString 调用，这将是要走的路。
回答by keyboardP
Could try
可以试试
Console.WriteLine(f.ToString("p1").Replace('%',' '));
Or, if you want don't want a space, use Replace('%','\0')
或者，如果您不想使用空格，请使用 Replace('%','\0')
EDIT: If you can only use the ToString()method, you could create a NumberFormatInfoobject, set the percentage symbol to be blank and pass it into the method.
(NumberFormatInfois in the System.Globalizationnamespace)
e.g.
编辑：如果您只能使用该ToString()方法，则可以创建一个NumberFormatInfo对象，将百分比符号设置为空白并将其传递给该方法。（NumberFormatInfo在System.Globalization命名空间中）例如
NumberFormatInfo myNewFormat = new NumberFormatInfo();
myNewFormat.PercentSymbol = "";
float f = 0.479f;
Console.WriteLine(f.ToString("p1",myNewFormat));
回答by Rubens Farias
Console.WriteLine((f * 100).ToString("0.0"));
回答by Noldorin
How about just the following?
仅以下内容如何？
Console.WriteLine((f * 100).ToString("F1"));
e.g. f = 0.4792 --> "47.9"
例如 f = 0.4792 --> "47.9"
A list and descriptions of standard numeric format are available here on MSDN, in case it helps.
MSDN上提供了标准数字格式的列表和说明，以防万一。
