Custom numeric format strings: # (digit)

SpecifierMeaning
#Digit placeholder

using System;
using System.Text;
using System.Globalization;
class Sample
{
    public static void Main()
    {
        Console.WriteLine("{0:.##}", 12.345);
        Console.WriteLine("{0:.####}", 12.345);

    }
}

The output:


12.35
12.345
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