Boolean.Parse Boolean.Parse Boolean.Parse Boolean.Parse Method

定義

多載

Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>)
Parse(String) Parse(String) Parse(String) Parse(String)

將指定之邏輯值的字串表示,轉換為相等的 BooleanConverts the specified string representation of a logical value to its Boolean equivalent.

Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>) Parse(ReadOnlySpan<Char>)

public:
 static bool Parse(ReadOnlySpan<char> value);
public static bool Parse (ReadOnlySpan<char> value);
static member Parse : ReadOnlySpan<char> -> bool
Public Shared Function Parse (value As ReadOnlySpan(Of Char)) As Boolean

參數

傳回

Parse(String) Parse(String) Parse(String) Parse(String)

將指定之邏輯值的字串表示,轉換為相等的 BooleanConverts the specified string representation of a logical value to its Boolean equivalent.

public:
 static bool Parse(System::String ^ value);
public static bool Parse (string value);
static member Parse : string -> bool
Public Shared Function Parse (value As String) As Boolean

參數

value
String String String String

字串,包含要轉換的值。A string containing the value to convert.

傳回

如果 value 等於 TrueString,則為 true;如果 value 等於 FalseString 則為 falsetrue if value is equivalent to TrueString; false if value is equivalent to FalseString.

例外狀況

範例

下列程式碼範例說明如何使用Parse方法。The following code example illustrates the use of Parse method.

Boolean val;
String^ input;
input = Boolean::TrueString;
val = Boolean::Parse( input );
Console::WriteLine(  "'{0}' parsed as {1}", input, val );
// The example displays the following output:
//       'True' parsed as True        
bool val;
string input;

input = bool.TrueString;
val = bool.Parse(input);
Console.WriteLine("'{0}' parsed as {1}", input, val);
// The example displays the following output:
//       'True' parsed as True        
Dim val As Boolean
Dim input As String

input = Boolean.TrueString
val = Boolean.Parse(input)
Console.WriteLine("'{0}' parsed as {1}", input, val)
' The example displays the following output:
'       'True' parsed as True

備註

參數(選擇性地前後加上或 trailed 空白字元)必須TrueString包含或FalseString,否則會擲回例外狀況。 valueThe value parameter, optionally preceded or trailed by white space, must contain either TrueString or FalseString; otherwise, an exception is thrown. 比較不區分大小寫。The comparison is case-insensitive.

另請參閱

適用於