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  • c#小Tip:数字格式化显示

    using System;

    class FormattingNumbers
    {
      
    static void Main()
      
    {
        
    decimal theDecNumber = 12345.678m//the "m" creates a literal of type decimal from a double
        
    //Using the ToString Method
        
    //the number in the format string is the precision specifier
        Console.WriteLine("No formatting: " + theDecNumber.ToString());
        Console.WriteLine(
    "Currency formatting: " + theDecNumber.ToString("C"));
        Console.WriteLine(
    "Exponential formatting: " + theDecNumber.ToString("E"));
        Console.WriteLine(
    "Fixed-point formatting: " + theDecNumber.ToString("F2"));
        Console.WriteLine(
    "General formatting: " + theDecNumber.ToString("G"));
        Console.WriteLine(
    "Number formatting to 2 decimal places: " + theDecNumber.ToString("N2"));
        Console.WriteLine(
    "Number formatting to 3 decimal places: " + theDecNumber.ToString("N3"));
        Console.WriteLine(
    "Number formatting to 4 decimal places: " + theDecNumber.ToString("N4"));
        Console.WriteLine(
    "Percent formatting: " + theDecNumber.ToString("P0"));

        
    int theIntNumber = 123456;
        Console.WriteLine(
    "Hexidecimal formatting (for integers): {0} = {1}", theIntNumber, theIntNumber.ToString("X"));

        
    double theDblNumber = 1234567890;
        Console.WriteLine(
    "Custom formatting: {0} to US telephone {1}", theDblNumber, theDblNumber.ToString( "(###) ### - ####" ));

        
    //Keep console open if not run through command prompt
        Console.Write("\nPress Enter to Continue");
        Console.ReadLine();
      }

    }

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  • 原文地址:https://www.cnblogs.com/darejoy/p/936271.html
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