本文整理匯總了VB.NET中System.SByte.TryParse方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET SByte.TryParse方法的具體用法？VB.NET SByte.TryParse怎麽用？VB.NET SByte.TryParse使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。
在下文中一共展示了SByte.TryParse方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: numericStrings
Dim numericStrings() As String = {"-3.6", "12.8", "+16.7", " 3 ", _
"(17)", "-17", "+12", "18-", "987", _
"1,024", " 127 "}
Dim number As SByte
For Each numericString As String In numericStrings
If SByte.TryParse(numericString, number) Then
Console.WriteLine("Converted '{0}' to {1}.", numericString, number)
Else
Console.WriteLine("Cannot convert '{0}' to an SByte.", numericString)
End If
Next輸出：
Cannot convert '-3.6' to an SByte. Cannot convert '12.8' to an SByte. Cannot convert '+16.7' to an SByte. Converted ' 3 ' to 3. Cannot convert '(17)' to an SByte. Converted '-17' to -17. Converted '+12' to 12. Cannot convert '18-' to an SByte. Cannot convert '987' to an SByte. Cannot convert '1,024' to an SByte. Converted ' 127 ' to 127.
示例2: StringParsing
' 導入命名空間
Imports System.Globalization
Module StringParsing
Public Sub Main()
Dim numericString As String
Dim styles As NumberStyles
numericString = "106"
styles = NumberStyles.Integer
CallTryParse(numericString, styles)
numericString = "-106"
styles = NumberStyles.None
CallTryParse(numericString, styles)
numericString = "103.00"
styles = NumberStyles.Integer Or NumberStyles.AllowDecimalPoint
CallTryParse(numericString, styles)
numericString = "103.72"
styles = NumberStyles.Integer Or NumberStyles.AllowDecimalPoint
CallTryParse(numericString, styles)
numericString = "10E-01"
styles = NumberStyles.Integer Or NumberStyles.AllowExponent
CallTryParse(numericString, styles)
numericString = "12E-01"
CallTryParse(numericString, styles)
numericString = "12E01"
CallTryParse(numericString, styles)
numericString = "C8"
CallTryParse(numericString, NumberStyles.HexNumber)
numericString = "0x8C"
CallTryParse(numericString, NumberStyles.HexNumber)
End Sub
Private Sub CallTryParse(stringToConvert As String, styles AS NumberStyles)
Dim number As SByte
Dim result As Boolean = SByte.TryParse(stringToConvert, styles, _
CultureInfo.InvariantCulture, number)
If result Then
Console.WriteLine("Converted '{0}' to {1}.", stringToConvert, number)
Else
Console.WriteLine("Attempted conversion of '{0}' failed.", _
Convert.ToString(stringToConvert))
End If
End Sub
End Module輸出：
Converted '106' to 106. Attempted conversion of '-106' failed. Converted '103.00' to 103. Attempted conversion of '103.72' failed. Converted '10E-01' to 1. Attempted conversion of '12E-01' failed. Converted '12E01' to 120. Converted 'C8' to -56. Attempted conversion of '0x8C' failed.