String.EndsWith メソッド
定義
重要
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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
EndsWith(String, Boolean, CultureInfo) |
指定されたカルチャを使って比較した場合に、この文字列インスタンスの末尾が、指定された文字列と一致するかどうかを判断します。 |
EndsWith(String, StringComparison) |
指定された比較オプションを使って比較した場合に、この文字列インスタンスの末尾が、指定され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(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(String, Boolean, CultureInfo)
指定されたカルチャを使って比較した場合に、この文字列インスタンスの末尾が、指定され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の部分文字列と比較する文字列。
- ignoreCase
- Boolean
比較時に大文字と小文字の区別を無視する場合は true
。それ以外の場合は false
。
- culture
- CultureInfo
このインスタンスと value
と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。
戻り値
value
パラメーターがこの文字列の末尾と一致する場合は true
。それ以外の場合は false
。
例外
value
が 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判断します。 メソッドは EndsWith 、大文字と小文字の区別、大文字と小文字の区別、および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、 パラメーターを value
、 と同じ長さの value
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。 が等しい場合は、この同じインスタンスへの参照であるか、 value
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、指定し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, StringComparison)
指定された比較オプションを使って比較した場合に、この文字列インスタンスの末尾が、指定され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の部分文字列と比較する文字列。
- comparisonType
- StringComparison
この文字列と value
との比較方法を決定する列挙値の 1 つ。
戻り値
value
パラメーターがこの文字列の末尾と一致する場合は true
。それ以外の場合は false
。
- 属性
例外
value
が null
です。
comparisonType
が 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 namespace System;
using namespace System::Threading;
void Test(String^ testString, String^ searchString,
StringComparison comparison)
{
String^ resultFormat = "\"{0}\" {1} with \"{2}\".";
String^ resultString = "does not end";
if (testString->EndsWith(searchString, comparison))
{
resultString = "ends";
}
Console::WriteLine(resultFormat, testString, resultString, searchString);
}
int main()
{
String^ introMessage =
"Determine whether a string ends with another string, " +
"using\ndifferent values of StringComparison.";
array<StringComparison>^ comparisonValues = {
StringComparison::CurrentCulture,
StringComparison::CurrentCultureIgnoreCase,
StringComparison::InvariantCulture,
StringComparison::InvariantCultureIgnoreCase,
StringComparison::Ordinal,
StringComparison::OrdinalIgnoreCase};
Console::WriteLine(introMessage);
// 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);
// Perform two tests for each StringComparison
for each (StringComparison stringCmp in comparisonValues)
{
Console::WriteLine("StringComparison.{0}:", stringCmp);
Test("abcXYZ", "XYZ", stringCmp);
Test("abcXYZ", "xyz", stringCmp);
Console::WriteLine();
}
}
/*
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.
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
メソッドは EndsWith 、 パラメーターを value
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。 が等しい場合は、 value
この同じ文字列への参照である必要があります。または、空の文字列 ("") 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。 メソッドによって実行される EndsWith 比較の種類は、 パラメーターの comparisonType
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(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。
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の文字と比較する文字。
戻り値
このインスタンスの末尾が value
と一致する場合は true
。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(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。
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の部分文字列と比較する文字列。
戻り値
このインスタンスの末尾が value
と一致する場合は true
。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、 メソッドを StripEndTags
使用して行の EndsWith(String) 末尾から HTML 終了タグを削除する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 namespace System;
using namespace System::Collections;
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 ) {
item = item->Substring( 0, lastLocation );
found = true;
}
}
if (found) item = StripEndTags(item);
return item;
}
int 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 (>).
array<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
IEnumerator^ myEnum1 = strSource->GetEnumerator();
while ( myEnum1->MoveNext() )
{
String^ s = safe_cast<String^>(myEnum1->Current);
Console::WriteLine( s );
}
Console::WriteLine();
Console::WriteLine( "The following lists the items after the ends have been stripped:" );
Console::WriteLine( "----------------------------------------------------------------" );
// Display the array of strings.
IEnumerator^ myEnum2 = strSource->GetEnumerator();
while ( myEnum2->MoveNext() )
{
String^ s = safe_cast<String^>(myEnum2->Current);
Console::WriteLine( 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>
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、 と同じ長さのvalue
このインスタンスの末尾にある部分文字列と比較value
し、それらが等しいかどうかを示す値を返します。 が等しい場合は、 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 (大文字と小文字を区別し、カルチャを区別) 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」で説明されているように、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、パラメーターの 値CurrentCultureを 指定して メソッド オーバーロードを呼び出EndsWith(String, StringComparison)すことによって、意図をcomparisonType
明示的に通知します。 言語対応の比較が必要ない場合は、 の使用を Ordinal検討してください。
こちらもご覧ください
適用対象
.NET