格式化数值数据

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication12
{
    class Program
    {
        //使用一些格式化标记
        static void Main(string[] args)
        {
            Console.WriteLine("The value 99999 in various formats:");
            Console.WriteLine("c format: {0:c}",99999);
            Console.WriteLine("d9 format: {0:d9}",99999);
            Console.WriteLine("f3 format: {0:f3}",99999);
            Console.WriteLine("n format: {0:n}",99999);

            //注意.十六进制数的大小写形式决定了字母是大写还是小写
            Console.WriteLine("E format: {0:E}",99999);
            Console.WriteLine("e format: {0:e}",99999);
            Console.WriteLine("X format: {0:X}",99999);
            Console.WriteLine("x format: {0:x}",99999);
            Console.ReadKey();
        }
    }
}

效果显示：