时间：2021-01-09 11:15:17 | 栏目：.NET代码 | 点击：次
话不多说，请看代码
using System.Text.RegularExpressions;
/// <summary>
/// 判断字符串是否是int/double
/// </summary>
public static bool IsIntOrDouble(string strNumber)
{
Regex objNotNumberPattern = new Regex("[^0-9.-]");
Regex objTwoDotPattern = new Regex("[0-9]*[.][0-9]*[.][0-9]*");
Regex objTwoMinusPattern = new Regex("[0-9]*[-][0-9]*[-][0-9]*");
const string strValidRealPattern = "^([-]|[.]|[-.]|[0-9])[0-9]*[.]*[0-9]+$";
const string strValidIntegerPattern = "^([-]|[0-9])[0-9]*$";
Regex objNumberPattern = new Regex("(" + strValidRealPattern + ")|(" + strValidIntegerPattern + ")");
return !objNotNumberPattern.IsMatch(strNumber) &&
!objTwoDotPattern.IsMatch(strNumber) &&
!objTwoMinusPattern.IsMatch(strNumber) &&
objNumberPattern.IsMatch(strNumber);
}