publicstaticintGetDecimalDigitValue(charch); Parameters ch Char The Unicode character for which to get the decimal digit value. Returns Int32 The decimal digit value of the specified numeric character. -or- -1, if the specified character is not a decimal digit. ...
IsLetter IsLetterOrDigit IsLower IsLowSurrogate IsNumber IsPunctuation IsSeparator IsSurrogate IsSurrogatePair IsSymbol IsUpper IsWhiteSpace Parse ToLower ToLowerInvariant ToString ToUpper ToUpperInvariant TryParse 显式接口实现 CharEnumerator CLSCompliantAttribute ...
例: // C# program to illustrate the// Char.IsDigit(String, Int32) MethodusingSystem;classGFG{// Main MethodstaticpublicvoidMain(){// Declaration of data typeboolresult;// checking for decimal digit in// a string at a desired positionstringstr1 ="GeeksforGeeks"; result = Char.IsDigit(str...
Valid numbers are members of the UnicodeCategory.DecimalDigitNumber, UnicodeCategory.LetterNumber, or UnicodeCategory.OtherNumber category. If the Char object at position index is the first character of a valid surrogate pair, the IsNumber(String, Int32) method determines whether the surrogate pair ...
IsCombining IsConnecting IsDecimalDigit IsEmailPart IsFormatting IsHexDigit IsIdentifier IsIdentifierPart IsIdentifierStart IsLetter IsLetterOrDecimalDigit IsNewLine IsTerminatingCharToken IsTerminatingQuotedStringToken IsWhitespace IsWhitespaceOrNewLine SanitizeClassName ...
Valid numbers are members of the UnicodeCategory.DecimalDigitNumber, UnicodeCategory.LetterNumber, or UnicodeCategory.OtherNumber category. If the Char object at position index is the first character of a valid surrogate pair, the IsNumber(String, Int32) method determines whether the surrogate pair ...
Valid numbers are members of the UnicodeCategory.DecimalDigitNumber, UnicodeCategory.LetterNumber, or UnicodeCategory.OtherNumber category. If the Char object at position index is the first character of a valid surrogate pair, the IsNumber(String, Int32) method determines whether the surrogate pair ...
确定指定的字符值是否为十进制数。 C# 复制 public static bool IsDecimalDigit (char value); 参数 value Char 要检查的值。 返回 Boolean 如果指定的字符值为十进制数字,则为 true;否则为 false。 适用于 产品版本 ASP.NET Web Pages 3.2 反馈 此页面是否有帮助? 是 否 ...
This type/member supports the .NET Framework infrastructure and is not intended to be used directly from your code. Determines whether the specified character value is a decimal digit number. C# Copy public static bool IsDecimalDigit (char value); Parameters value ...
DecimalDigitNumber=8,/// 摘要:// 由字母表示的数字,而不是十进制数字,例如,罗马数字 5 由字母“V”表示。 此指示符由 Unicode 代码“Nl”(数字,字母)表示。 值为 9。LetterNumber=9,/// 摘要:// 既不是十进制数字也不是字母数字的数字,例如分数 1/2。 此指示符由 Unicode 代码“No”(数字,其他...