Language

String.EndsWith メソッド

定義

この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

オーバーロード

名前 説明
EndsWith(String, StringComparison)

指定した比較オプションを使用して比較するときに、この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

EndsWith(Rune, StringComparison)
EndsWith(Char, StringComparison)
EndsWith(String, Boolean, CultureInfo)

指定したカルチャを使用して比較したときに、この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

EndsWith(String)

この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

EndsWith(Char)

この文字列インスタンスの末尾が指定した文字と一致するかどうかを判断します。

EndsWith(Rune)

EndsWith(String, StringComparison)

ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs

指定した比較オプションを使用して比較するときに、この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

public:
 bool EndsWith(System::String ^ value, StringComparison comparisonType);
public bool EndsWith(string value, StringComparison comparisonType);
[System.Runtime.InteropServices.ComVisible(false)]
public bool EndsWith(string value, StringComparison comparisonType);
member this.EndsWith : string * StringComparison -> bool
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.EndsWith : string * StringComparison -> bool
Public Function EndsWith (value As String, comparisonType As StringComparison) As Boolean

パラメーター

value
String

このインスタンスの末尾にある部分文字列と比較する文字列。

comparisonType
StringComparison

この文字列と value の比較方法を決定する列挙値の 1 つ。

返品

true value パラメーターがこの文字列の末尾と一致する場合は。それ以外の場合はfalse。

属性

例外

value は nullです。

comparisonType は StringComparison 値ではありません。

例

次の例では、文字列が特定の部分文字列で終わるかどうかを判断します。 結果は、カルチャの選択、大文字と小文字の区別が無視されるかどうか、および序数比較が実行されるかどうかによって影響を受けます。

// This example demonstrates the 
// System.String.EndsWith(String, StringComparison) method.

using System;
using System.Threading;

class Sample 
{
    public static void Main() 
    {
        string intro = "Determine whether a string ends with another string, " +
                   "using\n  different values of StringComparison.";

        StringComparison[] scValues = {
            StringComparison.CurrentCulture,
            StringComparison.CurrentCultureIgnoreCase,
            StringComparison.InvariantCulture,
            StringComparison.InvariantCultureIgnoreCase,
            StringComparison.Ordinal,
            StringComparison.OrdinalIgnoreCase };

        Console.WriteLine(intro);

        // Display the current culture because the culture-specific comparisons
        // can produce different results with different cultures.
        Console.WriteLine("The current culture is {0}.\n", 
                       Thread.CurrentThread.CurrentCulture.Name);
        
        // Determine whether three versions of the letter I are equal to each other. 
        foreach (StringComparison sc in scValues)
        {
            Console.WriteLine("StringComparison.{0}:", sc);
            Test("abcXYZ", "XYZ", sc);
            Test("abcXYZ", "xyz", sc);
            Console.WriteLine();
        }
    }

    protected static void Test(string x, string y, StringComparison comparison)
    {
        string resultFmt = "\"{0}\" {1} with \"{2}\".";
        string result = "does not end";

        if (x.EndsWith(y, comparison))
            result = "ends";
        Console.WriteLine(resultFmt, x, result, y);
    }
}

/*
This code example produces the following results:

Determine whether a string ends with another string, using
  different values of StringComparison.
The current culture is en-US.

StringComparison.CurrentCulture:
"abcXYZ" ends with "XYZ".
"abcXYZ" does not end with "xyz".

StringComparison.CurrentCultureIgnoreCase:
"abcXYZ" ends with "XYZ".
"abcXYZ" ends with "xyz".

StringComparison.InvariantCulture:
"abcXYZ" ends with "XYZ".
"abcXYZ" does not end with "xyz".

StringComparison.InvariantCultureIgnoreCase:
"abcXYZ" ends with "XYZ".
"abcXYZ" ends with "xyz".

StringComparison.Ordinal:
"abcXYZ" ends with "XYZ".
"abcXYZ" does not end with "xyz".

StringComparison.OrdinalIgnoreCase:
"abcXYZ" ends with "XYZ".
"abcXYZ" ends with "xyz".

*/
// This example demonstrates the 
// System.String.EndsWith(String, StringComparison) method.

open System
open System.Threading

let test (x: string) y (comparison: StringComparison) =
    let result = 
        if x.EndsWith(y, comparison) then
            "ends"
        else 
            "does not end"
    printfn $"\"{x}\" {result} with \"{y}\"."

let scValues = 
  [|
    StringComparison.CurrentCulture
    StringComparison.CurrentCultureIgnoreCase
    StringComparison.InvariantCulture
    StringComparison.InvariantCultureIgnoreCase
    StringComparison.Ordinal
    StringComparison.OrdinalIgnoreCase
  |]

printfn "Determine whether a string ends with another string, using\n  different values of StringComparison."

// Display the current culture because the culture-specific comparisons
// can produce different results with different cultures.
printfn $"The current culture is {Thread.CurrentThread.CurrentCulture.Name}.\n"

// Determine whether three versions of the letter I are equal to each other. 
for sc in scValues do
    printfn $"StringComparison.{sc}:"
    test "abcXYZ" "XYZ" sc
    test "abcXYZ" "xyz" sc
    printfn ""

(*
This code example produces the following results:

Determine whether a string ends with another string, using
  different values of StringComparison.
The current culture is en-US.

StringComparison.CurrentCulture:
"abcXYZ" ends with "XYZ".
"abcXYZ" does not end with "xyz".

StringComparison.CurrentCultureIgnoreCase:
"abcXYZ" ends with "XYZ".
"abcXYZ" ends with "xyz".

StringComparison.InvariantCulture:
"abcXYZ" ends with "XYZ".
"abcXYZ" does not end with "xyz".

StringComparison.InvariantCultureIgnoreCase:
"abcXYZ" ends with "XYZ".
"abcXYZ" ends with "xyz".

StringComparison.Ordinal:
"abcXYZ" ends with "XYZ".
"abcXYZ" does not end with "xyz".

StringComparison.OrdinalIgnoreCase:
"abcXYZ" ends with "XYZ".
"abcXYZ" ends with "xyz".

*)
' This example demonstrates the 
' System.String.EndsWith(String, StringComparison) method.

Imports System.Threading

Class Sample
    Public Shared Sub Main() 
        Dim intro As String = "Determine whether a string ends with another string, " & _
                              "using" & vbCrLf & "  different values of StringComparison."
        
        Dim scValues As StringComparison() =  { _
                        StringComparison.CurrentCulture, _
                        StringComparison.CurrentCultureIgnoreCase, _
                        StringComparison.InvariantCulture, _
                        StringComparison.InvariantCultureIgnoreCase, _
                        StringComparison.Ordinal, _
                        StringComparison.OrdinalIgnoreCase }

        Console.WriteLine(intro)
        
        ' Display the current culture because the culture-specific comparisons
        ' can produce different results with different cultures.
        Console.WriteLine("The current culture is {0}." & vbCrLf, _
                           Thread.CurrentThread.CurrentCulture.Name)

        ' Determine whether three versions of the letter I are equal to each other. 
        Dim sc As StringComparison
        For Each sc In  scValues
            Console.WriteLine("StringComparison.{0}:", sc)
            Test("abcXYZ", "XYZ", sc)
            Test("abcXYZ", "xyz", sc)
            Console.WriteLine()
        Next sc
    
    End Sub
    
    
    Protected Shared Sub Test(ByVal x As String, ByVal y As String, _
                              ByVal comparison As StringComparison) 
        Dim resultFmt As String = """{0}"" {1} with ""{2}""."
        Dim result As String = "does not end"
        '
        If x.EndsWith(y, comparison) Then
            result = "ends"
        End If
        Console.WriteLine(resultFmt, x, result, y)
    
    End Sub
End Class

'
'This code example produces the following results:
'
'Determine whether a string ends with another string, using
'  different values of StringComparison.
'The current culture is en-US.
'
'StringComparison.CurrentCulture:
'"abcXYZ" ends with "XYZ".
'"abcXYZ" does not end with "xyz".
'
'StringComparison.CurrentCultureIgnoreCase:
'"abcXYZ" ends with "XYZ".
'"abcXYZ" ends with "xyz".
'
'StringComparison.InvariantCulture:
'"abcXYZ" ends with "XYZ".
'"abcXYZ" does not end with "xyz".
'
'StringComparison.InvariantCultureIgnoreCase:
'"abcXYZ" ends with "XYZ".
'"abcXYZ" ends with "xyz".
'
'StringComparison.Ordinal:
'"abcXYZ" ends with "XYZ".
'"abcXYZ" does not end with "xyz".
'
'StringComparison.OrdinalIgnoreCase:
'"abcXYZ" ends with "XYZ".
'"abcXYZ" ends with "xyz".
'

注釈

EndsWith メソッドは、value パラメーターをこの文字列の末尾にある部分文字列と比較し、それらが等しいかどうかを示す値を返します。 等しくするには、 value がこの同じ文字列への参照であるか、空の文字列 ("") であるか、またはこの文字列の末尾と一致している必要があります。 EndsWith メソッドによって実行される比較の種類は、comparisonType パラメーターの値によって異なります。

こちらもご覧ください

適用対象

EndsWith(Rune, StringComparison)

ソース:
String.Comparison.cs
public:
 bool EndsWith(System::Text::Rune value, StringComparison comparisonType);
public bool EndsWith(System.Text.Rune value, StringComparison comparisonType);
member this.EndsWith : System.Text.Rune * StringComparison -> bool
Public Function EndsWith (value As Rune, comparisonType As StringComparison) As Boolean

パラメーター

value
Rune
comparisonType
StringComparison

返品

適用対象

EndsWith(Char, StringComparison)

ソース:
String.Comparison.cs
public:
 bool EndsWith(char value, StringComparison comparisonType);
public bool EndsWith(char value, StringComparison comparisonType);
member this.EndsWith : char * StringComparison -> bool
Public Function EndsWith (value As Char, comparisonType As StringComparison) As Boolean

パラメーター

value
Char
comparisonType
StringComparison

返品

適用対象

EndsWith(String, Boolean, CultureInfo)

ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs

指定したカルチャを使用して比較したときに、この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

public:
 bool EndsWith(System::String ^ value, bool ignoreCase, System::Globalization::CultureInfo ^ culture);
public bool EndsWith(string value, bool ignoreCase, System.Globalization.CultureInfo? culture);
public bool EndsWith(string value, bool ignoreCase, System.Globalization.CultureInfo culture);
member this.EndsWith : string * bool * System.Globalization.CultureInfo -> bool
Public Function EndsWith (value As String, ignoreCase As Boolean, culture As CultureInfo) As Boolean

パラメーター

value
String

このインスタンスの末尾にある部分文字列と比較する文字列。

ignoreCase
Boolean

true 比較中に大文字と小文字を区別しない場合。それ以外の場合は false。

culture
CultureInfo

このインスタンスと value の比較方法を決定するカルチャ情報。 culture が null の場合は、現在のカルチャが使用されます。

返品

true value パラメーターがこの文字列の末尾と一致する場合は。それ以外の場合はfalse。

例外

value は nullです。

例

次の例では、文字列が別の文字列の末尾に出現するかどうかを決定します。 EndsWithメソッドは、大文字と小文字の区別、大文字と小文字の区別、検索の結果に影響を与えるさまざまなカルチャを使用して複数回呼び出されます。

// This code example demonstrates the 
// System.String.EndsWith(String, ..., CultureInfo) method.

using System;
using System.Threading;
using System.Globalization;

class Sample 
{
    public static void Main() 
    {
        string msg1 = "Search for the target string \"{0}\" in the string \"{1}\".\n";
        string msg2 = "Using the {0} - \"{1}\" culture:";
        string msg3 = "  The string to search ends with the target string: {0}";
        bool result = false;
        CultureInfo ci;

        // Define a target string to search for.
        // U+00c5 = LATIN CAPITAL LETTER A WITH RING ABOVE
        string capitalARing = "\u00c5";

        // Define a string to search. 
        // The result of combining the characters LATIN SMALL LETTER A and COMBINING 
        // RING ABOVE (U+0061, U+030a) is linguistically equivalent to the character 
        // LATIN SMALL LETTER A WITH RING ABOVE (U+00e5).
        string xyzARing = "xyz" + "\u0061\u030a";

        // Display the string to search for and the string to search.
        Console.WriteLine(msg1, capitalARing, xyzARing);

        // Search using English-United States culture.
        ci = new CultureInfo("en-US");
        Console.WriteLine(msg2, ci.DisplayName, ci.Name);

        Console.WriteLine("Case sensitive:");
        result = xyzARing.EndsWith(capitalARing, false, ci);
        Console.WriteLine(msg3, result);

        Console.WriteLine("Case insensitive:");
        result = xyzARing.EndsWith(capitalARing, true, ci);
        Console.WriteLine(msg3, result);
        Console.WriteLine();

        // Search using Swedish-Sweden culture.
        ci = new CultureInfo("sv-SE");
        Console.WriteLine(msg2, ci.DisplayName, ci.Name);

        Console.WriteLine("Case sensitive:");
        result = xyzARing.EndsWith(capitalARing, false, ci);
        Console.WriteLine(msg3, result);

        Console.WriteLine("Case insensitive:");
        result = xyzARing.EndsWith(capitalARing, true, ci);
        Console.WriteLine(msg3, result);
    }
}

/*
This code example produces the following results (for en-us culture):

Search for the target string "Å" in the string "xyza°".

Using the English (United States) - "en-US" culture:
Case sensitive:
  The string to search ends with the target string: False
Case insensitive:
  The string to search ends with the target string: True

Using the Swedish (Sweden) - "sv-SE" culture:
Case sensitive:
  The string to search ends with the target string: False
Case insensitive:
  The string to search ends with the target string: False

*/
// This code example demonstrates the 
// System.String.EndsWith(String, ..., CultureInfo) method.
open System.Globalization

[<EntryPoint>]
let main _ =
    // Define a target string to search for.
    // U+00c5 = LATIN CAPITAL LETTER A WITH RING ABOVE
    let capitalARing = "\u00c5"

    // Define a string to search. 
    // The result of combining the characters LATIN SMALL LETTER A and COMBINING 
    // RING ABOVE (U+0061, U+030a) is linguistically equivalent to the character 
    // LATIN SMALL LETTER A WITH RING ABOVE (U+00e5).
    let xyzARing = "xyz" + "\u0061\u030a"

    // Display the string to search for and the string to search.
    printfn $"Search for the target string \"{capitalARing}\" in the string \"{xyzARing}\".\n"

    // Search using English-United States culture.
    let ci = CultureInfo "en-US"
    printfn $"Using the {ci.DisplayName} - \"{ci.Name}\" culture:"

    printfn "Case sensitive:"
    let result = xyzARing.EndsWith(capitalARing, false, ci)
    printfn $"  The string to search ends with the target string: {result}"

    printfn "Case insensitive:"
    let result = xyzARing.EndsWith(capitalARing, true, ci)
    printfn $"  The string to search ends with the target string: {result}\n"

    // Search using Swedish-Sweden culture.
    let ci = CultureInfo "sv-SE"
    printfn $"Using the {ci.DisplayName} - \"{ci.Name}\" culture:"

    printfn "Case sensitive:"
    let result = xyzARing.EndsWith(capitalARing, false, ci)
    printfn $"  The string to search ends with the target string: {result}"

    printfn "Case insensitive:"
    let result = xyzARing.EndsWith(capitalARing, true, ci)
    printfn $"  The string to search ends with the target string: {result}"
    0
(*
This code example produces the following results (for en-us culture):

Search for the target string "Å" in the string "xyza°".

Using the English (United States) - "en-US" culture:
Case sensitive:
  The string to search ends with the target string: False
Case insensitive:
  The string to search ends with the target string: True

Using the Swedish (Sweden) - "sv-SE" culture:
Case sensitive:
  The string to search ends with the target string: False
Case insensitive:
  The string to search ends with the target string: False
*)
' This code example demonstrates the 
' System.String.EndsWith(String, ..., CultureInfo) method.

Imports System.Threading
Imports System.Globalization

Class Sample
    Public Shared Sub Main() 
        Dim msg1 As String = "Search for the target string ""{0}"" in the string ""{1}""." & vbCrLf
        Dim msg2 As String = "Using the {0} - ""{1}"" culture:"
        Dim msg3 As String = "  The string to search ends with the target string: {0}"
        Dim result As Boolean = False
        Dim ci As CultureInfo
        
        ' Define a target string to search for.
        ' U+00c5 = LATIN CAPITAL LETTER A WITH RING ABOVE
        Dim capitalARing As String = "Å"
        
        ' Define a string to search. 
        ' The result of combining the characters LATIN SMALL LETTER A and COMBINING 
        ' RING ABOVE (U+0061, U+030a) is linguistically equivalent to the character 
        ' LATIN SMALL LETTER A WITH RING ABOVE (U+00e5).
        Dim xyzARing As String = "xyz" & "å"
               
        ' Display the string to search for and the string to search.
        Console.WriteLine(msg1, capitalARing, xyzARing)
        
        ' Search using English-United States culture.
        ci = New CultureInfo("en-US")
        Console.WriteLine(msg2, ci.DisplayName, ci.Name)
        
        Console.WriteLine("Case sensitive:")
        result = xyzARing.EndsWith(capitalARing, False, ci)
        Console.WriteLine(msg3, result)
        
        Console.WriteLine("Case insensitive:")
        result = xyzARing.EndsWith(capitalARing, True, ci)
        Console.WriteLine(msg3, result)
        Console.WriteLine()
        
        ' Search using Swedish-Sweden culture.
        ci = New CultureInfo("sv-SE")
        Console.WriteLine(msg2, ci.DisplayName, ci.Name)
        
        Console.WriteLine("Case sensitive:")
        result = xyzARing.EndsWith(capitalARing, False, ci)
        Console.WriteLine(msg3, result)
        
        Console.WriteLine("Case insensitive:")
        result = xyzARing.EndsWith(capitalARing, True, ci)
        Console.WriteLine(msg3, result)
    
    End Sub
End Class

'This code example produces the following results (for en-us culture):
'
'Search for the target string "Å" in the string "xyza°".
'
'Using the English (United States) - "en-US" culture:
'Case sensitive:
'  The string to search ends with the target string: False
'Case insensitive:
'  The string to search ends with the target string: True
'
'Using the Swedish (Sweden) - "sv-SE" culture:
'Case sensitive:
'  The string to search ends with the target string: False
'Case insensitive:
'  The string to search ends with the target string: False
'

注釈

このメソッドは、 value パラメーターを、 valueと同じ長さの文字列の末尾にある部分文字列と比較し、等しいかどうかを示す値を返します。 等しくするには、 value がこの同じインスタンスへの参照であるか、この文字列の末尾と一致している必要があります。

このメソッドは、指定された大文字と小文字とカルチャを使用して、単語 (カルチャに依存) の比較を実行します。

こちらもご覧ください

適用対象

EndsWith(String)

ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs

この文字列インスタンスの末尾が指定した文字列と一致するかどうかを判断します。

public:
 bool EndsWith(System::String ^ value);
public bool EndsWith(string value);
member this.EndsWith : string -> bool
Public Function EndsWith (value As String) As Boolean

パラメーター

value
String

このインスタンスの末尾にある部分文字列と比較する文字列。

返品

true valueがこのインスタンスの末尾と一致する場合は。それ以外の場合はfalse。

例外

value は nullです。

例

次の例では、配列内の各文字列がピリオド (".") で終わるかどうかを示します。

using System;

public class Example
{
   public static void Main()
   {
      String[] strings = { "This is a string.", "Hello!", "Nothing.", 
                           "Yes.", "randomize" };
      foreach (var value in strings) {
         bool endsInPeriod = value.EndsWith(".");
         Console.WriteLine("'{0}' ends in a period: {1}", 
                           value, endsInPeriod);
      }                            
   }
}
// The example displays the following output:
//       'This is a string.' ends in a period: True
//       'Hello!' ends in a period: False
//       'Nothing.' ends in a period: True
//       'Yes.' ends in a period: True
//       'randomize' ends in a period: False
let strings = 
    [| "This is a string."; "Hello!"; "Nothing."
       "Yes."; "randomize" |]

for value in strings do
    let endsInPeriod = value.EndsWith "."
    printfn $"'{value}' ends in a period: {endsInPeriod}"
// The example displays the following output:
//       'This is a string.' ends in a period: True
//       'Hello!' ends in a period: False
//       'Nothing.' ends in a period: True
//       'Yes.' ends in a period: True
//       'randomize' ends in a period: False
Module Example
   Public Sub Main()
      Dim strings() As String = { "This is a string.", "Hello!", 
                                  "Nothing.", "Yes.", "randomize" }
      For Each value In strings
         Dim endsInPeriod As Boolean = value.EndsWith(".")
         Console.WriteLine("'{0}' ends in a period: {1}", 
                           value, endsInPeriod)
      Next                            
   End Sub
End Module
' The example displays the following output:
'       'This is a string.' ends in a period: True
'       'Hello!' ends in a period: False
'       'Nothing.' ends in a period: True
'       'Yes.' ends in a period: True
'       'randomize' ends in a period: False

次の例では、StripEndTags メソッドを使用して行の末尾から HTML 終了タグを削除するEndsWith(String) メソッドを定義します。 StripEndTags メソッドは再帰的に呼び出され、行の末尾にある複数の HTML 終了タグが確実に削除されることに注意してください。

using System;

public class EndsWithTest {
    public static void Main() {

        // process an input file that contains html tags.
        // this sample checks for multiple tags at the end of the line, rather than simply
        // removing the last one.
        // note: HTML markup tags always end in a greater than symbol (>).

        string [] strSource = { "<b>This is bold text</b>", "<H1>This is large Text</H1>",
                "<b><i><font color=green>This has multiple tags</font></i></b>",
                "<b>This has <i>embedded</i> tags.</b>",
                "This line simply ends with a greater than symbol, it should not be modified>" };

        Console.WriteLine("The following lists the items before the ends have been stripped:");
        Console.WriteLine("-----------------------------------------------------------------");

        // print out the initial array of strings
        foreach ( string s in strSource )
            Console.WriteLine( s );

        Console.WriteLine();

        Console.WriteLine("The following lists the items after the ends have been stripped:");
        Console.WriteLine("----------------------------------------------------------------");

        // print out the array of strings
        foreach (var s in strSource)
            Console.WriteLine(StripEndTags(s));
    }

    private static string StripEndTags( string item ) {

        bool found = false;

        // try to find a tag at the end of the line using EndsWith
        if (item.Trim().EndsWith(">")) {

            // now search for the opening tag...
            int lastLocation = item.LastIndexOf( "</" );

            // remove the identified section, if it is a valid region
            if ( lastLocation >= 0 ) {
                found = true;
                item =  item.Substring( 0, lastLocation );
            }
        }

        if (found)
           item = StripEndTags(item);

        return item;
    }
}
// The example displays the following output:
//    The following lists the items before the ends have been stripped:
//    -----------------------------------------------------------------
//    <b>This is bold text</b>
//    <H1>This is large Text</H1>
//    <b><i><font color=green>This has multiple tags</font></i></b>
//    <b>This has <i>embedded</i> tags.</b>
//    This line simply ends with a greater than symbol, it should not be modified>
//
//    The following lists the items after the ends have been stripped:
//    ----------------------------------------------------------------
//    <b>This is bold text
//    <H1>This is large Text
//    <b><i><font color=green>This has multiple tags
//    <b>This has <i>embedded</i> tags.
//    This line simply ends with a greater than symbol, it should not be modified>
let rec stripEndTags item =
    let mutable item: string = item
    let mutable found = false

    // try to find a tag at the end of the line using EndsWith
    if item.Trim().EndsWith ">" then
        // now search for the opening tag...
        let lastLocation = item.LastIndexOf "</"

        // remove the identified section, if it is a valid region
        if lastLocation >= 0 then
            found <- true
            item <- item.Substring(0, lastLocation)

    if found then
        stripEndTags item
    else 
        item

// process an input file that contains html tags.
// this sample checks for multiple tags at the end of the line, rather than simply
// removing the last one.
// note: HTML markup tags always end in a greater than symbol (>).

let strSource = 
    [| "<b>This is bold text</b>"; "<H1>This is large Text</H1>"
       "<b><i><font color=green>This has multiple tags</font></i></b>"
       "<b>This has <i>embedded</i> tags.</b>"
       "This line simply ends with a greater than symbol, it should not be modified>" |]

printfn "The following lists the items before the ends have been stripped:"
printfn "-----------------------------------------------------------------"

// print out the initial array of strings
for s in strSource do
    printfn $"{s}"

printfn "\nThe following lists the items after the ends have been stripped:"
printfn "----------------------------------------------------------------"

// print out the array of strings
for s in strSource do
    printfn $"{stripEndTags s}"

// The example displays the following output:
//    The following lists the items before the ends have been stripped:
//    -----------------------------------------------------------------
//    <b>This is bold text</b>
//    <H1>This is large Text</H1>
//    <b><i><font color=green>This has multiple tags</font></i></b>
//    <b>This has <i>embedded</i> tags.</b>
//    This line simply ends with a greater than symbol, it should not be modified>
//
//    The following lists the items after the ends have been stripped:
//    ----------------------------------------------------------------
//    <b>This is bold text
//    <H1>This is large Text
//    <b><i><font color=green>This has multiple tags
//    <b>This has <i>embedded</i> tags.
//    This line simply ends with a greater than symbol, it should not be modified>
Public Module Example
    Public Sub Main()
        Dim strSource() As String = { "<b>This is bold text</b>", 
                    "<H1>This is large Text</H1>", 
                    "<b><i><font color = green>This has multiple tags</font></i></b>", 
                    "<b>This has <i>embedded</i> tags.</b>", 
                    "This line simply ends with a greater than symbol, it should not be modified>" }

        Console.WriteLine("The following lists the items before the ends have been stripped:")
        Console.WriteLine("-----------------------------------------------------------------")

        ' Display the initial array of strings.
        For Each s As String In  strSource
            Console.WriteLine(s)
        Next
        Console.WriteLine()

        Console.WriteLine("The following lists the items after the ends have been stripped:")
        Console.WriteLine("----------------------------------------------------------------")

        ' Display the array of strings.
        For Each s As String In strSource
            Console.WriteLine(StripEndTags(s))
        Next 
    End Sub 

    Private Function StripEndTags(item As String) As String
        Dim found As Boolean = False
        
        ' Try to find a tag at the end of the line using EndsWith.
        If item.Trim().EndsWith(">") Then
            ' now search for the opening tag...
            Dim lastLocation As Integer = item.LastIndexOf("</")
            If lastLocation >= 0 Then
                found = True
                
                ' Remove the identified section, if it is a valid region.
                item = item.Substring(0, lastLocation)
            End If
        End If
        
        If found Then item = StripEndTags(item)
        Return item
    End Function 
End Module
' The example displays the following output:
'    The following lists the items before the ends have been stripped:
'    -----------------------------------------------------------------
'    <b>This is bold text</b>
'    <H1>This is large Text</H1>
'    <b><i><font color = green>This has multiple tags</font></i></b>
'    <b>This has <i>embedded</i> tags.</b>
'    This line simply ends with a greater than symbol, it should not be modified>
'    
'    The following lists the items after the ends have been stripped:
'    ----------------------------------------------------------------
'    <b>This is bold text
'    <H1>This is large Text
'    <b><i><font color = green>This has multiple tags
'    <b>This has <i>embedded</i> tags.
'    This line simply ends with a greater than symbol, it should not be modified>

注釈

このメソッドは、 value を、 valueと同じ長さのこのインスタンスの末尾にある部分文字列と比較し、等しいかどうかを示す値を返します。 等しくするには、 value この同じインスタンスへの参照であるか、このインスタンスの末尾と一致している必要があります。

このメソッドは、現在のカルチャを使用して単語 (大文字と小文字が区別され、カルチャに依存) の比較を実行します。

注意 (呼び出し元)

「文字列を使用するためのベスト プラクティス」で説明したように、既定値に置き換える文字列比較メソッドを呼び出さないようにし、パラメーターを明示的に指定する必要があるメソッドを呼び出さないようにすることをお勧めします。 現在のカルチャの文字列比較規則を使用して、文字列が特定の部分文字列で終わるかどうかを判断するには、EndsWith(String, StringComparison) メソッドのオーバーロードをCurrentCulture パラメーターの値comparisonTypeで明示的に呼び出して意図を通知します。 言語対応の比較が必要ない場合は、 Ordinalの使用を検討してください。

こちらもご覧ください

適用対象

EndsWith(Char)

ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs
ソース:
String.Comparison.cs

この文字列インスタンスの末尾が指定した文字と一致するかどうかを判断します。

public:
 bool EndsWith(char value);
public bool EndsWith(char value);
member this.EndsWith : char -> bool
Public Function EndsWith (value As Char) As Boolean

パラメーター

value
Char

このインスタンスの末尾にある文字と比較する文字。

返品

true valueがこのインスタンスの末尾と一致する場合は。それ以外の場合はfalse。

注釈

このメソッドは、序数 (大文字と小文字を区別し、カルチャを区別しない) 比較を実行します。

適用対象

EndsWith(Rune)

ソース:
String.Comparison.cs
public:
 bool EndsWith(System::Text::Rune value);
public bool EndsWith(System.Text.Rune value);
member this.EndsWith : System.Text.Rune -> bool
Public Function EndsWith (value As Rune) As Boolean

パラメーター

value
Rune

返品

適用対象