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 = n
