no commit message

Utilities/StringTools.cs

@@ -106,17 +106,22 @@ namespace Infrastructure.Utilities
 
 		public static bool IsNullOrEmpty(this string s)
 		{
-			if (s == null)
-			{
-				return true;
-			}
+			return string.IsNullOrEmpty(s);
+		}
 
-			if (s == "" || s == string.Empty)
-			{
-				return true;
-			}
+		public static bool IsNullOrWhiteSpace(this string s)
+		{
+			return string.IsNullOrWhiteSpace(s);
+		}
 
-			return false;
+		public static bool NotNullOrEmpty(this string s)
+		{
+			return !IsNullOrEmpty(s);
+		}
+
+		public static bool NotNullOrWhiteSpace(this string s)
+		{
+			return !string.IsNullOrWhiteSpace(s);
 		}
 
 		//Base64编码。