C#与javascript—正则写法

迷之雾 2011-05-11

展开全文

C#写法：

public class InputValidation
   {
   /// <summary>
   /// 正则验证的
   /// </summary>
   /// <param name="regExValue">正则表达式</param>
   /// <param name="itemValue">被验证的数据</param>
   /// <returns></returns>
   private static bool IsRegEx(string regExValue, string itemValue)
   {
   try
   {
   Regex regex = new System.Text.RegularExpressions.Regex(regExValue);
   if (regex.IsMatch(itemValue)) return true;
   else return false;
   }
   catch (Exception)
   {
   return false;
   }
   }
   /// <summary>
   /// 是否是数字
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsNumeric(string itemValue)
   {
   return (IsRegEx("^(-?[0-9]*[.]*[0-9]{0,3})$", itemValue));
   }
   /// <summary>
   /// 是否是正浮点型
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsPositiveDouble(string itemValue)
   {
   return (IsRegEx(@"^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$", itemValue));
   }
   /// <summary>
   /// 是否是正整数
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsPositiveInt(string itemValue)
   {
   return (IsRegEx("^[0-9]*[1-9][0-9]*$", itemValue));
   }
   /// <summary>
   /// 是否是电话号码
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsCellPhone(string itemValue)
   {
   return (IsRegEx(@"^(\d*|\d{3,}\-\d*)$", itemValue));
   }

   /// <summary>
   /// 是否是字母字符串，不分大小写
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsAlphabeticString(string itemValue)
   {
   return (IsRegEx(@"^[A-Za-z]+$", itemValue));
   }

   /// <summary>
   /// 是否是有数字和字符串组成
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsNumberOrChar(string itemValue)
   {
   return (IsRegEx(@"^[A-Za-z0-9]+$",itemValue));
   }

   /// <summary>
   /// 是否是中文
   /// </summary>
   /// <param name="itemValue"></param>
   /// <returns></returns>
   public static bool IsChineseCharater(string itemValue)
   {
   return (IsRegEx(@"^([\u4e00-\u9fa5]+|[a-zA-Z0-9]+)$ ", itemValue));
   }
}

javascript写法：

function regMail(str)
   var reg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
   return reg.test(str);
}
function isNum(s) {
   return !isNaN(s);
}
function regTel(str)//验证固定电话
{
   var reg=/^\d{6,12}$/;
   return reg.test(str);
}