cyf
58 lines
1.9 KiB
C#
58 lines
1.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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namespace Lskj.Push.Util
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{
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class StringUtil
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{
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public bool IsNumber(String strNumber)
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{
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Regex objNotNumberPattern=new Regex("[^0-9.-]");
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Regex objTwoDotPattern=new Regex("[0-9]*[.][0-9]*[.][0-9]*");
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Regex objTwoMinusPattern=new Regex("[0-9]*[-][0-9]*[-][0-9]*");
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String strValidRealPattern="^([-]|[.]|[-.]|[0-9])[0-9]*[.]*[0-9]+$";
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String strValidIntegerPattern="^([-]|[0-9])[0-9]*$";
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Regex objNumberPattern =new Regex("(" + strValidRealPattern +")|(" + strValidIntegerPattern + ")");
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return !objNotNumberPattern.IsMatch(strNumber) &&
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!objTwoDotPattern.IsMatch(strNumber) &&
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!objTwoMinusPattern.IsMatch(strNumber) &&
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objNumberPattern.IsMatch(strNumber);
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}
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public static bool IsNumeric(string value)
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{
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return Regex.IsMatch(value, @"^[+-]?\d*[.]?\d*$");
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}
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public static bool IsInt(string value)
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{
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return Regex.IsMatch(value, @"^[+-]?\d*$");
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}
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public static bool IsUnsign(string value)
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{
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return Regex.IsMatch(value, @"^\d*[.]?\d*$");
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}
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public static String arrayToString(String[] values)
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{
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if (null == values) return "";
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StringBuilder buffer = new StringBuilder(values.Length);
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for (int i = 0; i < values.Length; i++)
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{
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buffer.Append(values[i]).Append(",");
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}
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if (buffer.Length > 0)
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{
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return buffer.ToString().Substring(0, buffer.Length - 1);
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}
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return "";
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}
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}
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}
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