判断是否十六进制格式字符串

/// 判断是否十六进制格式字符串

public bool IsHexadecimal(string str)
{
const string PATTERN = @"[A-Fa-f0-9]+$";
return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
}

/// 判断是否八进制格式字符串

public bool IsOctal(string str)
{
const string PATTERN = @"[0-7]+$";
return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
}

/// 判断是否二进制格式字符串

public bool IsBinary(string str)
{
const string PATTERN = @"[0-1]+$";
return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
}

/// 判断是否十进制格式字符串

public bool IsDecimal(string str)
{
const string PATTERN = @"[0-9]+$";
return System.Text.RegularExpressions.Regex.IsMatch(str, PATTERN);
}