using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Collections;

using System.Reflection;

using System.Text.RegularExpressions;

namespace ConsoleApplication1

{

    

public 

static 

class Program

    {

        

///

 

<summary>

        

///

 入口函数

        

///

 

</summary>

        

///

 

<param name="args"></param>

        

static 

void Main(

string[] args)

        {

            List<

string> oldStrList = 

new List<

string>()

            {

                

"

12

",

"

ZH

",

"

CN

",

"

2E

",

"

0A

",

"

56

",

"

FF

",

"

00

"

            };

            Console.Write(

"

Old List：

" + oldStrList.Count + 

"

 ->

");

            

foreach (

string str 

in oldStrList) Console.Write(str + 

"

 

");

            Console.WriteLine(

""); 

            List<

string> newHexList = oldStrList.HexFilter(

                (p) => 

                    {

                        

bool blStatus = 

false;

                        

try

                        {

                            Convert.ToInt32(p, 

16); blStatus = 

true;

                        }

                        

catch

                        {

                            blStatus = 

false;

                        }

                        

return blStatus; 

                    }

                ).ToList();

            Console.Write(

"

New List：

" + newHexList.Count + 

"

 ->

");

            

foreach (

string str 

in newHexList) Console.Write(str + 

"

 

");

            Console.ReadLine();

        }

        

///

 

<summary>

        

///

 过滤掉非十六进制字符

        

///

 

</summary>

        

///

 

<typeparam name="T"></typeparam>

        

///

 

<param name="source"></param>

        

///

 

<param name="predicate"></param>

        

///

 

<returns></returns>

        

static IEnumerable<T> HexFilter<T>(

this IEnumerable<T> source, Func<T, 

bool> predicate)

        {

            

foreach (T item 

in source)

            {

                

if (predicate(item)) 

yield 

return item;

            }

        }

    }

}