Regex.Split的用法

在工做過程當中學到的幾個小知識點總結：
根據條件判斷是是否要加入集合：
能夠經過linq去判斷條件是否成立
List<HRWorkOverTimeDto> rest = new List<HRWorkOverTimeDto>();

   for (int i = 0; i < gps.Count; i++)    {        if (rest.Find(x => x.overTimePeople_hrBaseName == gps[i].overTimePeople_hrBaseName && x.overTimeStartDate == gps[i].overTimeStartDate && x.overTimeEndDate == gps[i].overTimeEndDate) == null)        {                     rest.Add(gps[i]);        }    } string[] arr = Regex.Split(dto.overTimePeople_hrBaseName, dto.udf1, RegexOptions.IgnoreCase); 因爲有用到Regex.Split()這個方法，因此從網上搜到一下資料已作參考： Regex.Split的用法： 一、用字符串分隔： using System.Text.RegularExpressions; string str="aaajsbbbjsccc"; string[] sArray=Regex.Split(str,"js",RegexOptions.IgnoreCase); foreach (string i in sArray) Response.Write(i.ToString() + "<br>"); 輸出結果： aaa bbb ccc 二、用多個字符來分隔： string str="aaajbbbscccjdddseee"; string[] sArray=str.Split(new char[2] {'j','s'}); foreach(string i in sArray) Response.Write(i.ToString() + "<br>"); 輸出結果： aaa bbb ccc ddd eee 三、用單個字符來分隔： string str="aaajbbbjccc"; string[] sArray=str.Split('j'); foreach(string i in sArray) Response.Write(i.ToString() + "<br>"); 輸出結果： aaa bbb ccc 48.String.Split 方法有6個重載函數：  49.   50.  51.程序代碼   52.  53.1) public string[] Split(params char[] separator)  54.   55.2) public string[] Split(char[] separator, int count)  56.3) public string[] Split(char[] separator, StringSplitOptions options)  57.4) public string[] Split(string[] separator, StringSplitOptions options)  58.5) public string[] Split(char[] separator, int count, StringSplitOptions options)  59.6) public string[] Split(string[] separator, int count, StringSplitOptions options)   60.  61.  62.下邊咱們經過一些實例來講明下怎麼使用(如下string words = "1,2.3,,4";)：  63.1. public string[] Split(params char[] separator)  64.   65.  66.程序代碼   67.  68.string[] split = words.Split(new Char[] { ',' });//返回:{"1","2.3","","4"}   69.string[] split = words.Split(new Char[] { ',', '.' });//返回:{"1","2","3","","4"}    70.2. public string[] Split(char[] separator, int count)  71.   72.  73.程序代碼   74.  75.string[] split = words.Split(new Char[] { ',', '.' }, 2);//返回:{"1","2.3,,4"}   76.string[] split = words.Split(new Char[] { ',', '.' }, 6);//返回:{"1","2","3","","4"}    77.3. public string[] Split(char[] separator, StringSplitOptions options)  78.   79.  80.程序代碼   81.  82.string[] split = words.Split(new Char[] { ',', '.' }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素   83.string[] split = words.Split(new Char[] { ',', '.' }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素    84.4. public string[] Split(string[] separator, StringSplitOptions options)  85.   86.  87.程序代碼   88.  89.string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2","3","4"} 不保留空元素   90.string[] split = words.Split(new string[] { ",", "." }, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素    91.5. public string[] Split(char[] separator, int count, StringSplitOptions options)  92.   93.  94.程序代碼   95.  96.string[] split = words.Split(new Char[] { ',', '.' }, 2, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2.3,,4"} 不保留空元素   97.string[] split = words.Split(new Char[] { ',', '.' }, 6, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素    98.6. public string[] Split(string[] separator, int count, StringSplitOptions options)  99.   100.  101.程序代碼   102.  103.string[] split = words.Split(new string[] { ",", "." }, 2, StringSplitOptions.RemoveEmptyEntries);//返回:{"1","2.3,,4"} 不保留空元素   104.string[] split = words.Split(new string[] { ",", "." }, 6, StringSplitOptions.None);//返回:{"1","2","3","","4"} 保留空元素    105.  106.須要注意的是沒有重載函數public string[] Split(string[] separator)，因此咱們不能像VB.NET那樣使用words.Split(",")，而只能使用words.Split(','）