diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e69de29
diff --git a/test01/main.cpp b/test01/main.cpp
index 4db72fd..1e88f40 100644
--- a/test01/main.cpp
+++ b/test01/main.cpp
@@ -1,17 +1,13 @@
 #include <iostream>
 using namespace std;
 
-int main() {
-    /*
-     要求：编写程序，输出 1-50 之间所有能被 3 整除的数字，并统计其个数
-     */
-    int count = 0;
-    for (int i = 1; i <= 50; i++) {
-        if (i % 3 == 0) {
-            cout << i << " ";
-            count++;
-        }
-    }
-    cout << endl;
-    cout << count << endl;
+
+struct Node{
+    int first;
+    int second;
+};
+
+
+int main(){
+    
 }