diff --git a/Faclon.Extend.sln b/Faclon.Extend.sln
new file mode 100644
index 0000000..dd08a36
--- /dev/null
+++ b/Faclon.Extend.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29613.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Faclon.Extend", "Faclon.Extend\Faclon.Extend.csproj", "{F77EDE31-EBB5-42E9-85C3-1501D2B0CA81}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Faclon.ExtendTests", "Faclon.ExtendTests\Faclon.ExtendTests.csproj", "{3C7A5D31-3FB4-4DDA-8283-5CB81BE63150}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {F77EDE31-EBB5-42E9-85C3-1501D2B0CA81}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {F77EDE31-EBB5-42E9-85C3-1501D2B0CA81}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {F77EDE31-EBB5-42E9-85C3-1501D2B0CA81}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {F77EDE31-EBB5-42E9-85C3-1501D2B0CA81}.Release|Any CPU.Build.0 = Release|Any CPU
+ {3C7A5D31-3FB4-4DDA-8283-5CB81BE63150}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {3C7A5D31-3FB4-4DDA-8283-5CB81BE63150}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {3C7A5D31-3FB4-4DDA-8283-5CB81BE63150}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {3C7A5D31-3FB4-4DDA-8283-5CB81BE63150}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {FF964C7D-2826-4608-A52B-06BB952F1DC8}
+ EndGlobalSection
+EndGlobal
diff --git a/Faclon.Extend/Faclon.Extend.csproj b/Faclon.Extend/Faclon.Extend.csproj
new file mode 100644
index 0000000..6237e14
--- /dev/null
+++ b/Faclon.Extend/Faclon.Extend.csproj
@@ -0,0 +1,14 @@
+
+
+
+ netstandard2.0;netstandard2.1
+ true
+ 1.0.0
+ bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml
+ http://39.105.71.191/Falcon/Falcon.Extend
+ http://39.105.71.191/Falcon/Falcon.Extend
+ .NET 基础类型方法扩展
+ Falcon
+
+
+
diff --git a/Faclon.Extend/StringExtend.cs b/Faclon.Extend/StringExtend.cs
new file mode 100644
index 0000000..55328a4
--- /dev/null
+++ b/Faclon.Extend/StringExtend.cs
@@ -0,0 +1,26 @@
+namespace Faclon.Extend
+{
+ ///
+ /// 字符串处理扩展
+ ///
+ public static class StringExtend
+ {
+ ///
+ /// 是否为Null或Empty
+ ///
+ /// 要判断的字符串
+ /// 如果为Null或Empty返回True，否则False
+ public static bool IsNullOrEmpty(this string str) {
+ return str == null ? true : string.IsNullOrEmpty(str);
+ }
+
+ ///
+ /// 是否为Null或Empty
+ ///
+ /// 要判断的字符串
+ /// 如果为Null或Empty返回True，否则False
+ public static bool IsNotNullOrEmpty(this string str) {
+ return !str.IsNullOrEmpty();
+ }
+ }
+}
diff --git a/Faclon.ExtendTests/Faclon.ExtendTests.csproj b/Faclon.ExtendTests/Faclon.ExtendTests.csproj
new file mode 100644
index 0000000..4dbea6c
--- /dev/null
+++ b/Faclon.ExtendTests/Faclon.ExtendTests.csproj
@@ -0,0 +1,20 @@
+
+
+
+ netcoreapp3.0;netcoreapp3.1
+
+ false
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/Faclon.ExtendTests/StringExtendTests.cs b/Faclon.ExtendTests/StringExtendTests.cs
new file mode 100644
index 0000000..348e8b5
--- /dev/null
+++ b/Faclon.ExtendTests/StringExtendTests.cs
@@ -0,0 +1,24 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Faclon.Extend.Tests
+{
+ [TestClass()]
+ public class StringExtendTests
+ {
+ [TestMethod()]
+ public void IsNullOrEmptyTest() {
+ string str = null;
+ Assert.IsTrue(str.IsNullOrEmpty());
+ Assert.IsFalse(str.IsNotNullOrEmpty());
+ str = "";
+ Assert.IsTrue(str.IsNullOrEmpty());
+ Assert.IsFalse(str.IsNotNullOrEmpty());
+ str = string.Empty;
+ Assert.IsTrue(str.IsNullOrEmpty());
+ Assert.IsFalse(str.IsNotNullOrEmpty());
+ str = "abc";
+ Assert.IsFalse(str.IsNullOrEmpty());
+ Assert.IsTrue(str.IsNotNullOrEmpty());
+ }
+ }
+}
\ No newline at end of file