新增方法

ZR.Common/Tools.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Text.RegularExpressions;
 
 namespace ZR.Common
 {
@@ -60,5 +61,23 @@ namespace ZR.Common
                 : (diffday / 7)) + 1 + (dayInMonth > firstWeekEndDay ? 1 : 0);
             return weekNumInMonth;
         }
+        /// <summary>
+        /// 判断一个字符串是否为url
+        /// </summary>
+        /// <param name="str"></param>
+        /// <returns></returns>
+        public static bool IsUrl(string str)
+        {
+            try
+            {
+                string Url = @"^http(s)?://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?$";
+                return Regex.IsMatch(str, Url);
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex.Message);
+                return false;
+            }
+        }
     }
 }