diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dbcb217
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+**/*.exe
+**/gmon.out
\ No newline at end of file
diff --git a/第一讲 变量、输入输出、表达式与顺序语句/1.cpp b/第一讲 变量、输入输出、表达式与顺序语句/1.cpp
new file mode 100644
index 0000000..2bdb4dd
--- /dev/null
+++ b/第一讲 变量、输入输出、表达式与顺序语句/1.cpp	
@@ -0,0 +1,12 @@
+#include <iostream>
+
+using namespace std;
+
+int main() {
+	int a, b;
+	cin >> a >> b;
+	
+	cout<< a + b << endl;
+	
+	return 0;
+}
\ No newline at end of file