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@@ -0,0 +1,29 @@
+### 作业
+
+```java
+mport java.util.Scanner;
+
+public class Num {
+    public static void main(String[] args) {
+        Scanner sc=new Scanner(System.in);
+        System.out.println(aandb(sc));
+    }
+    public static int aandb(Scanner sc) {
+        while (true) {
+            try {
+                System.out.println("输入第一个数:");
+                int a = sc.nextInt();
+                System.out.println("输入第二个数:");
+                int b = sc.nextInt();
+                return a+b;
+            } catch (Exception e) {
+                System.out.println("输入整数");
+                sc.nextLine();
+            }
+
+        }
+
+    }
+}
+```
+