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C#转换函数

原作者: [db:作者] 来自: [db:来源] 收藏 邀请 

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Win32; //对注册表操作
using System.Collections; //使用Arraylist
using System.Security.Cryptography;//加密解密
using System.IO;    //文件操作
using System.Runtime.InteropServices;//调用DLL DllImport
using System.Management;  //获取硬件信息
using System.Net;       //获取IP地址是用到
using System.Drawing;   //image 
using System.Net.NetworkInformation;    //ping 用到
using System.Text.RegularExpressions;   //正则
using System.Data;
using System.Data.SqlClient;
using Microsoft.VisualBasic;   //简体转繁体时用到
using System.Web;       //html UrlEncode


//注册表操作
    public class GF_RegReadWrite
    {

/// <summary>
/// 读取路径为keypath，键名为keyname的注册表键值，缺省返回def
/// </summary>
/// <param name="rootkey"></param>
/// <param name="keypath">路径</param>
/// <param name="keyname">键名</param>
/// <param name="rtn">默认为null</param>
/// <returns></returns>        
        static public bool GetRegVal(RegistryKey rootkey, string keypath, string keyname, out string rtn)
        {
            rtn = "";
try
            {
                RegistryKey key = rootkey.OpenSubKey(keypath);
                rtn = key.GetValue(keyname).ToString();
                key.Close();
return true;
            }
catch
            {
return false;
            }
        }

/// <summary>
/// 设置路径为keypath，键名为keyname的注册表键值为keyval
/// </summary>
/// <param name="rootkey"></param>
/// <param name="keypath"></param>
/// <param name="keyname"></param>
/// <param name="keyval"></param>
/// <returns></returns>
        static public bool SetRegVal(RegistryKey rootkey, string keypath, string keyname, string keyval)
        {
try
            {
                RegistryKey key = rootkey.OpenSubKey(keypath, true);
if (key == null)
                    key = rootkey.CreateSubKey(keypath);
                key.SetValue(keyname, (object)keyval);
                key.Close();
return true;
            }
catch
            {
return false;
            }
        }

/// 创建路径为keypath的键
        private RegistryKey CreateRegKey(RegistryKey rootkey, string keypath)
        {
try
            {
return rootkey.CreateSubKey(keypath);
            }
catch
            {
return null;
            }
        }
/// 删除路径为keypath的子项
        private bool DelRegSubKey(RegistryKey rootkey, string keypath)
        {
try
            {
                rootkey.DeleteSubKey(keypath);
return true;
            }
catch
            {
return false;
            }
        }
/// 删除路径为keypath的子项及其附属子项
        private bool DelRegSubKeyTree(RegistryKey rootkey, string keypath)
        {
try
            {
                rootkey.DeleteSubKeyTree(keypath);
return true;
            }
catch
            {
return false;
            }
        }
/// 删除路径为keypath下键名为keyname的键值
        private bool DelRegKeyVal(RegistryKey rootkey, string keypath, string keyname)
        {
try
            {
                RegistryKey key = rootkey.OpenSubKey(keypath, true);
                key.DeleteValue(keyname);
return true;
            }
catch
            {
return false;
            }
        }
    }


//类型转换
    public class GF_Convert
    {
/// <summary>
/// 字符串 转换 char数组
/// </summary>
/// <param name="in_str"></param>
/// <param name="in_len"></param>
/// <returns></returns>
        public static char[] string2chararray(string in_str, int in_len)
        {
char[] ch = new char[in_len];
            in_str.ToCharArray().CopyTo(ch, 0);
return ch;
        }

/// <summary>
/// char数组 转换 字符串
/// </summary>
/// <param name="in_str"></param>
/// <returns></returns>        
        public static string chararray2string(char[] in_str)
        {
string out_str;
            out_str = new string(in_str);
int i = out_str.IndexOf('\0', 0);
if (i == -1)
                i = 16;
return out_str.Substring(0, i);
        }

/// <summary>
/// byte数组 转换 字符串
/// </summary>
/// <param name="in_str"></param>
/// <returns></returns>
        public static string bytearray2string(byte[] in_str)
        {
string out_str;
            out_str = System.Text.Encoding.Default.GetString(in_str);
return out_str.Substring(0, out_str.IndexOf('\0', 0));

        }

/// <summary>
/// 字符串 转换 byte数组  注意转换出来会使原来的bytearray长度变短
/// </summary>
/// <param name="in_str"></param>
/// <returns></returns>
        public static byte[] string2bytearray(string in_str)
        {
return System.Text.Encoding.Default.GetBytes(in_str);
        }

/// <summary>
/// 字符串 转换 byte数组  长度为传如的长度
/// </summary>
/// <param name="in_str">传入字符串</param>
/// <param name="iLen">目标字节数组长度</param>
/// <returns></returns>
        public static byte[] string2bytearray(string in_str, int iLen)
        {
byte[] bytes = new byte[iLen];
byte[] bsources=System.Text.Encoding.Default.GetBytes(in_str);
            Array.Copy(bsources, bytes, bsources.Length);


return bytes;
        }

/// <summary>
/// 将字符串编码为Base64字符串
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
        public static string Base64Encode(string str)
        {
byte[] barray;
            barray = Encoding.Default.GetBytes(str);
return Convert.ToBase64String(barray);
        }

/// <summary>
/// 将Base64字符串解码为普通字符串
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
        public static string Base64Decode(string str)
        {
byte[] barray;
try
            {
                barray = Convert.FromBase64String(str);
return Encoding.Default.GetString(barray);
            }
catch
            {
return str;
            }
        }

/// <summary>
/// 图片 转换 byte数组
/// </summary>
/// <param name="pic"></param>
/// <param name="fmt"></param>
/// <returns></returns>
        public static byte[] image_Image2Byte(Image pic, System.Drawing.Imaging.ImageFormat fmt)
        {
            MemoryStream mem = new MemoryStream();
            pic.Save(mem, fmt);
            mem.Flush();
return mem.ToArray();
        }
/// <summary>
/// byte数组 转换 图片
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
        public static Image image_Byte2Image(byte[] bytes)
        {
            MemoryStream mem = new MemoryStream(bytes, true);
            mem.Read(bytes, 0, bytes.Length);
            mem.Flush();
            Image aa = Image.FromStream(mem);
return aa;
        }

/// <summary>
/// ip 转换 长整形
/// </summary>
/// <param name="strIP"></param>
/// <returns></returns>
        public static long IP2Long(string strIP)
        {

long[] ip = new long[4];

string[] s = strIP.Split('.');
            ip[0] = long.Parse(s[0]);
            ip[1] = long.Parse(s[1]);
            ip[2] = long.Parse(s[2]);
            ip[3] = long.Parse(s[3]);

return (ip[0] << 24) + (ip[1] << 16) + (ip[2] << 8) + ip[3];
        }

/// <summary>
/// 长整形 转换 IP
/// </summary>
/// <param name="longIP"></param>
/// <returns></returns>
        public static string Long2IP(long longIP)
        {


            StringBuilder sb = new StringBuilder("");
            sb.Append(longIP >> 24);
            sb.Append(".");

//将高8位置0，然后右移16为


            sb.Append((longIP & 0x00FFFFFF) >> 16);
            sb.Append(".");


            sb.Append((longIP & 0x0000FFFF) >> 8);
            sb.Append(".");

            sb.Append((longIP & 0x000000FF));


return sb.ToString();
        }

/// <summary>
/// 将8位日期型整型数据转换为日期字符串数据
/// </summary>
/// <param name="date">整型日期</param>
/// <param name="chnType">是否以中文年月日输出</param>
/// <returns></returns>
        public static string FormatDate(int date, bool chnType)
        {
string dateStr = date.ToString();

if (date <= 0 || dateStr.Length != 8)
return dateStr;

if (chnType)
return dateStr.Substring(0, 4) + "年" + dateStr.Substring(4, 2) + "月" + dateStr.Substring(6) + "日";

return dateStr.Substring(0, 4) + "-" + dateStr.Substring(4, 2) + "-" + dateStr.Substring(6);
        }


/// <summary>
/// string型转换为bool型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(object expression, bool defValue)
        {
if (expression != null)
return StrToBool(expression, defValue);

return defValue;
        }

/// <summary>
/// string型转换为bool型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
/// <returns>转换后的bool类型结果</returns>
        public static bool StrToBool(string expression, bool defValue)
        {
if (expression != null)
            {
if (string.Compare(expression, "true", true) == 0)
return true;
else if (string.Compare(expression, "false", true) == 0)
return false;
            }
return defValue;
        }


  /// <summary>
/// 将对象转换为Int32类型
/// </summary>
/// <param name="strValue">要转换的字符串</param>
/// <param name="defValue">缺省值</param>
///  
                       
                    
                    
 
                      





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