diff --git a/calculator.java b/calculator.java
new file mode 100644
index 0000000..6224d86
--- /dev/null
+++ b/calculator.java
@@ -0,0 +1,17 @@
+import java.util.Scanner;
+
+public class calculator {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.print("请输入第一个数:");
+        double num1 = scanner.nextDouble();
+
+        System.out.print("请输入第二个数:");
+        double num2 = scanner.nextDouble();
+
+        System.out.print("请选择操作符 (+, -, *, /, %):");
+        String operation = scanner.next();
+
+
+}