C# 10进制 16进制 互转

<% @ Page Language = " C# "  AutoEventWireup = " true "  CodeFile = " 10进制转16进制.aspx.cs "  Inherits = " 数据算法_10进制转16进制 "   %>

<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >

< html  xmlns ="http://www.w3.org/1999/xhtml"   >
< head  runat ="server" >
     < title > 10进制16进制互转 </ title >
</ head >
< body >
     < form  id ="form1"  runat ="server" >
     < div >
        10进制: < asp:TextBox  ID ="P10jz"  runat ="server" ></ asp:TextBox >< br  />
         < br  />
        16进制: < asp:TextBox  ID ="P16jz"  runat ="server" ></ asp:TextBox >< br  />
         < br  />
         &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;  
         < asp:Button  ID ="aetu"  runat ="server"  Text ="16转10"  OnClick ="zuan"   />
         &nbsp;   &nbsp;&nbsp;
                                      < asp:Button  ID ="Button1"  runat ="server"  Text ="10转16"  OnClick ="zuan16"   />

        
         </ div >
     </ form >
</ body >
</ html >

 

Cs 文件

 

using  System;
using  System.Data;
using  System.Configuration;
using  System.Collections;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Web.UI.HtmlControls;

public   partial   class  数据算法_10进制转16进制 : System.Web.UI.Page
{
     protected   void  Page_Load( object  sender, EventArgs e)
    {
    }

     ///   <summary>
     ///  10 进制 与16进制互转函数
     ///   </summary>
     ///   <param name="Shu"> 传入  10 进制 与16进制 数 </param>
     ///   <returns></returns>
     public   void  DateShu( string  Shu)
    { 
        
    }

     ///   <summary>
     ///  判断一个字符串是不是 16 进制
     ///   </summary>
     ///   <param name="str"></param>
     ///   <returns></returns>
     public   bool  Is16Jinz( string  str)
    {
         bool  reutn = false ;
         // 把一个字符串转换成 char 数组
         char [] baseAscII  =  str.ToUpper().ToCharArray(); //  ascII  48-57（0-9） ; 65-70(A-F)

             for  ( int  i  =   0 ; i  <  baseAscII.Length; i ++ )
            {
                 // 如果字符 串为0-9 , A-F 
                 if  (System.Text.RegularExpressions.Regex.IsMatch((baseAscII[i]).ToString(),  " [0-9] " )  ||  System.Text.RegularExpressions.Regex.IsMatch((baseAscII[i]).ToString(),  " [A-F] " ))
                {
                    reutn  =   true ;
                }
                 else
                {
                    reutn  =   false ;
                     break ;
                }
                 //  Response.Write(((int)baseAscII[i]).ToString());
            }
         return  reutn;
    }

     ///   <summary>
     ///  传入一个字符串 如果是16进制的就把他转成10进制的 
     ///  10进制的就把他转成 16进制的
     ///   </summary>
     ///   <param name="str16"> 要转化的字符串  </param>
     ///   <param name="str16"> 要转化的进制  如转10进制 就写 10  </param>
     ///   <returns></returns>
     public  String GetJinZiShu( string  Str16, int  shu)
    {
         int  Str10;

         //  10 转16进制
         if  (shu  ==   16 )
        {
             try
            {
                 int .Parse(Str16); // 如果是16就会出错
                 return   int .Parse(Str16).ToString( " X " );
            }
             catch
            {

            }
        }


         // 16进制 转 10 进制 将十位数乘以16加上个位数。如5A，将5乘以16得80，加上A的10进制10，结果是90。
         if  (Is16Jinz(Str16) && shu == 10 )
        {
             Str10  =    int .Parse(Str16, System.Globalization.NumberStyles.AllowHexSpecifier);
             return   Str10.ToString();
        }


         return   "" ;
    }
    


     protected   void  zuan( object  sender, EventArgs e)
    {
         if  (Is16Jinz(P16jz.Text.Trim()))
        {
            Response.Write( " 是: "   +  GetJinZiShu(P16jz.Text.Trim(), 10 ));

        }
         else
        {
            Response.Write( " 不是 " );
        }

    }
     protected   void  zuan16( object  sender, EventArgs e)
    {
        Response.Write( " 是: " + GetJinZiShu(P10jz.Text.Trim(), 16 ));
        
    }
}

Trackback: http://tb.blog.youkuaiyun.com/TrackBack.aspx?PostId=1763032