话不多说,请看代码 using System.Text.RegularExpressions;/// summary/// 判断字符串是否是int/double/// /summarypublic static bool IsIntOrDouble(string strNumber){ Regex objNotNumberPattern = new Regex("[^0-9.-]"); Regex objTw
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); }
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