diff --git a/.gitignore b/.gitignore
index dbe9c82..e6e9a85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-.vscode/
\ No newline at end of file
+patch/
diff --git a/JJL.c b/JJL.c
index 82865e4..c1c83c0 100644
--- a/JJL.c
+++ b/JJL.c
@@ -10,6 +10,12 @@ int sub(int a,int b)
     return a-b;
 }
 
+void my_printf(int a)
+{
+    printf("\r\n\r\n%d\r\n\r\n",a);
+}
+
+
 int main()
 {
     printf("hello world!");
diff --git a/JJL.h b/JJL.h
new file mode 100644
index 0000000..cb2ddb4
--- /dev/null
+++ b/JJL.h
@@ -0,0 +1,7 @@
+#include <iostream>
+
+using namespace std;
+
+void my_printf(int a);
+
+
diff --git a/UnitTest1.cpp b/UnitTest1.cpp
deleted file mode 100644
index ea56c80..0000000
--- a/UnitTest1.cpp
+++ /dev/null
@@ -1,57 +0,0 @@
-#include "pch.h"
-#include "CppUnitTest.h"
-#include "test.h"
-#include <assert.h>
-#include <chrono>
-#include <ctime>
-#include <cstdlib>
-using namespace Microsoft::VisualStudio::CppUnitTestFramework;
-
-void GenerateRandomArray(vector<int>& a,int sum)
-{
-	srand(time(0)); // ʹÓõ±Ç°Ê±¼ä×÷ΪÖÖ×Ó
-	for (int i = 0; i < sum; i++) {
-		a.push_back(i);
-	}
-}
-
-
-namespace UnitTest1
-{
-	TEST_CLASS(UnitTest1)
-	{
-	public:
-		
-		TEST_METHOD(TestMethod1)
-		{
-			vector<int> arr = { 5,8,4,3,9,1 };
-			const vector<int> expect = { 1,3,4,5,8,9 };
-			selectionSort(arr);
-			for(int i= 0;i < arr.size();i++)
-			{
-				Assert::AreEqual(expect.at(i), arr.at(i));
-			}
-		}
-		TEST_METHOD(TestEmptyArr)
-		{
-			vector<int> arr = {};
-			selectionSort(arr);
-			Assert::IsTrue(true);
-			
-		}
-		BEGIN_TEST_METHOD_ATTRIBUTE(TestRunTime)
-			TEST_METHOD_ATTRIBUTE(L"RUN","TIME")
-		END_TEST_METHOD_ATTRIBUTE(TestRunTime)
-		TEST_METHOD(TestRunTime)
-		{
-			vector<int> arr;
-			GenerateRandomArray(arr, 10000); // Éú³ÉËæ»úÊý×é
-			auto start = std::chrono::high_resolution_clock::now();
-			selectionSort(arr);
-			auto end = std::chrono::high_resolution_clock::now();
-			auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start);
-			Logger::WriteMessage(("Time: " + std::to_string(duration.count()) + "ms").c_str());
-			Assert::IsTrue(duration.count() < 10000); // É趨ãÐÖµ
-		}
-	};
-}
diff --git a/readme.txt b/readme.txt
new file mode 100644
index 0000000..7bd845a
--- /dev/null
+++ b/readme.txt
@@ -0,0 +1 @@
+什么也没有
\ No newline at end of file