C # string.split () Usage Summary. String.Split method (string[],? StringSplitOptions)

Split () is first a delimiter that splits a string into an array of characters according to the character in the split (' character '), and then saves it to a list object.

Output array objects often use foreach or for loops.

The first of these methods

string s=abcdeabcdeabcde; string [] Sarray=s.split ('C'); foreach (string in Sarray) Console.WriteLine (i.ToString ());

Output the following result:

Ab

Deab

Deab

De

The second method of

We see the result is a segmentation with a specified character. Use a different construction method for multiple words

to split the symbol :

 string  s= " ABCDEABCDEABCDE   "  string  [] Sarray1=s.split (new  char  [3 ]{"  c   ", "  d   ", "  e   " });  foreach  (string  i in   SArray1) Console.WriteLine (i.ToString ());  

You can output the following results

Ab

Ab

Ab

The third method of

string str1= i * * * * * * * * * * * * * * * * * * * teacher ; string [] str2;str1=str1. Replace (*****,*); str2=str1. Split (*); foreach (string in str2) Console.WriteLine (i.ToString ());

Output Result:

I

Is

One

A

Old

Division

Fourth type: String.Split method (string[],? StringSplitOptions):

Splits a string into multiple substrings based on a string in an array. You can specify whether the substring contains an empty array element

Separator

Type: system.string[]

A string array that separates substrings of this string, an empty array that does not contain delimiters, or null.

Options

Type: system.stringsplitoptions

stringsplitoptions. Removeemptyentries to omit empty array elements from the array returned; or stringsplitoptions. None to include empty array elements in the array returned. "  stringsplitoptions to omit empty array elements from the returned array. Removeemptyentries ; stringsplitoptions to include the empty array element in the returned array. None .

stringsplitoptions. Removeemptyentries to omit empty array elements from the array returned; or stringsplitoptions. None to include empty array elements in the array returned. " > instance:

This method can be used to return $$ characters $$ characters in exception:

 #regionGet error message/// <summary>       ///Get error message/// </summary>       /// <param name= "msg" ></param>       /// <returns></returns>       Private stringErrMsg (stringmsg) {           if(Msg. Contains ("$$"))               returnMsg. Split(new[] {"$$"}, Stringsplitoptions.none) [1]; Else               returnmsg; }       #endregion

When called:

Catch (Exception e)           {               thrownew  gspexception (errmsg (e.message), errorlevel.info);           }

The error message is handled by the ErrMsg method Exception e. E is written in database sql

if (V_count=0then        raise_application_error (-20001,'  $$ The document has been reviewed or executed and is not allowed to save $$');     End if;

This raise_application_error will return a bunch of strings in C # that contain $$ that the document has been audited or executed, and does not allow the $$ string to be saved . Includes various error messages, such as stack information.

But the foreground pop-up error when do not want other error message, just want to put the document has been audited or executed, not allow to save $$ removed as error message pop-up, this time you can intercept the error message.

First, according to the character $$ the error message to the division, the number of groups, and finally, will be divided into three elements of the array , the first is $$ front error message, the second is two $$ middle error message (This is what we want), the third is

The error message after the second $$. So we just get the second one, which is the array [1].

Msg. Split (New[] {"$$"}, Stringsplitoptions.none)[1];

This method can be called when the exception is processed.

C # string.split () Usage Summary. String.Split method (string[],? StringSplitOptions)