復制代碼 代碼如下:

publicstaticbool IsNumeric(string value)
{
return Regex.IsMatch(value, @”^[+-]?d*[.]?d*$”);
}
publicstaticbool IsInt(string value)
{
return Regex.IsMatch(value, @”^[+-]?d*$”);
}
publicstaticbool IsUnsign(string value)
{
return Regex.IsMatch(value, @”^d*[.]?d*$”);
}