StringPlusCommon.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

/// <summary>
/// 字符串处理类
/// </summary>
public class StringPlusCommon
{
    public static List<string> GetStrArray(string str, char speater, bool toLower)
    {
        List<string> list = new List<string>();
        string[] ss = str.Split(speater);
        foreach (string s in ss)
        {
            if (!string.IsNullOrEmpty(s) && s != speater.ToString())
            {
                string strVal = s;
                if (toLower)
                {
                    strVal = s.ToLower();
                }
                list.Add(strVal);
            }
        }
        return list;
    }
    /// <summary>
    /// 按照指定字符分割字符串
    /// </summary>
    /// <param name="str"></param>
    /// <param name="c"></param>
    /// <returns></returns>
    public static string[] GetStrArray(string str, char c)
    {
        return str.Split(new char[] { c });
    }
    public static string GetArrayStr(List<string> list, string speater)
    {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < list.Count; i++)
        {
            if (i == list.Count - 1)
            {
                sb.Append(list[i]);
            }
            else
            {
                sb.Append(list[i]);
                sb.Append(speater);
            }
        }
        return sb.ToString();
    }


    #region 删除最后一个字符之后的字符

    /// <summary>
    /// 删除最后结尾的一个逗号
    /// </summary>
    public static string DelLastComma(string str)
    {
        return str.Substring(0, str.LastIndexOf(","));
    }

    /// <summary>
    /// 删除最后结尾的指定字符后的字符
    /// </summary>
    public static string DelLastChar(string str, string strchar)
    {
        return str.Substring(0, str.LastIndexOf(strchar));
    }

    #endregion




    /// <summary>
    /// 转全角的函数(SBC case)
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    public static string ToSBC(string input)
    {
        //半角转全角：
        char[] c = input.ToCharArray();
        for (int i = 0; i < c.Length; i++)
        {
            if (c[i] == 32)
            {
                c[i] = (char)12288;
                continue;
            }
            if (c[i] < 127)
                c[i] = (char)(c[i] + 65248);
        }
        return new string(c);
    }

    /// <summary>
    ///  转半角的函数(SBC case)
    /// </summary>
    /// <param name="input">输入</param>
    /// <returns></returns>
    public static string ToDBC(string input)
    {
        char[] c = input.ToCharArray();
        for (int i = 0; i < c.Length; i++)
        {
            if (c[i] == 12288)
            {
                c[i] = (char)32;
                continue;
            }
            if (c[i] > 65280 && c[i] < 65375)
                c[i] = (char)(c[i] - 65248);
        }
        return new string(c);
    }

    public static List<string> GetSubStringList(string o_str, char sepeater)
    {
        List<string> list = new List<string>();
        string[] ss = o_str.Split(sepeater);
        foreach (string s in ss)
        {
            if (!string.IsNullOrEmpty(s) && s != sepeater.ToString())
            {
                list.Add(s);
            }
        }
        return list;
    }


    #region 将字符串样式转换为纯字符串
    /// <summary>
    /// 将字符串样式转换为纯字符串
    /// </summary>
    /// <param name="StrList"></param>
    /// <param name="SplitString"></param>
    /// <returns></returns>
    public static string GetCleanStyle(string StrList, string SplitString)
    {
        string RetrunValue = "";
        //如果为空，返回空值
        if (StrList == null)
        {
            RetrunValue = "";
        }
        else
        {
            //返回去掉分隔符
            string NewString = "";
            NewString = StrList.Replace(SplitString, "");
            RetrunValue = NewString;
        }
        return RetrunValue;
    }
    #endregion

    #region 将字符串转换为新样式
    /// <summary>
    /// 将字符串转换为新样式
    /// </summary>
    /// <param name="StrList"></param>
    /// <param name="NewStyle"></param>
    /// <param name="SplitString"></param>
    /// <param name="Error"></param>
    /// <returns></returns>
    public static string GetNewStyle(string StrList, string NewStyle, string SplitString, out string Error)
    {
        string ReturnValue = "";
        //如果输入空值，返回空，并给出错误提示
        if (StrList == null)
        {
            ReturnValue = "";
            Error = "请输入需要划分格式的字符串";
        }
        else
        {
            //检查传入的字符串长度和样式是否匹配,如果不匹配，则说明使用错误。给出错误信息并返回空值
            int strListLength = StrList.Length;
            int NewStyleLength = GetCleanStyle(NewStyle, SplitString).Length;
            if (strListLength != NewStyleLength)
            {
                ReturnValue = "";
                Error = "样式格式的长度与输入的字符长度不符，请重新输入";
            }
            else
            {
                //检查新样式中分隔符的位置
                string Lengstr = "";
                for (int i = 0; i < NewStyle.Length; i++)
                {
                    if (NewStyle.Substring(i, 1) == SplitString)
                    {
                        Lengstr = Lengstr + "," + i;
                    }
                }
                if (Lengstr != "")
                {
                    Lengstr = Lengstr.Substring(1);
                }
                //将分隔符放在新样式中的位置
                string[] str = Lengstr.Split(',');
                foreach (string bb in str)
                {
                    StrList = StrList.Insert(int.Parse(bb), SplitString);
                }
                //给出最后的结果
                ReturnValue = StrList;
                //因为是正常的输出，没有错误
                Error = "";
            }
        }
        return ReturnValue;
    }
    #endregion





    
    /// <summary>  
    /// 字符串转Unicode  
    /// </summary>  
    /// <param name="source">源字符串</param>  
    /// <returns>Unicode编码后的字符串</returns>  
    public static string String2Unicode(string source)
    {
        try
        {
            byte[] bytes = Encoding.Unicode.GetBytes(source);
            StringBuilder stringBuilder = new StringBuilder();
            for (int i = 0; i < bytes.Length; i += 2)
            {
                stringBuilder.AppendFormat("\\u{0}{1}", bytes[i + 1].ToString("x").PadLeft(2, '0'), bytes[i].ToString("x").PadLeft(2, '0'));
            }
            return stringBuilder.ToString();
        }
        catch (Exception)
        {

            throw;
        }
    }

    /// <summary>  
    /// Unicode转字符串  
    /// </summary>  
    /// <param name="source">经过Unicode编码的字符串</param>  
    /// <returns>正常字符串</returns>  
    public static string Unicode2String(string source)
    {

        try
        {
            return new Regex(@"\\u([0-9A-F]{4})", RegexOptions.IgnoreCase | RegexOptions.Compiled).Replace(
                       source, x => string.Empty + Convert.ToChar(Convert.ToUInt16(x.Result("$1"), 16)));
        }
        catch (Exception)
        {

            throw;
        }
    }
}