diff --git a/menu b/menu
new file mode 100644
index 0000000..eeb5ec0
--- /dev/null
+++ b/menu
@@ -0,0 +1,11 @@
+int Menu(void)
+{
+		int itemSelected;
+		printf("Management for Students' scores\n");
+		printf("1.Input record\n");
+		printf("2.Calculate total and average score of every course\n");
+		printf("0.Exit\n");
+		printf("Please Input your choice:");
+		scanf("%d", &itemSelected); 	// 读入用户输入 
+		return itemSelected;
+}
\ No newline at end of file
diff --git a/void b/void
new file mode 100644
index 0000000..51cb4ec
--- /dev/null
+++ b/void
@@ -0,0 +1,16 @@
+// 函数功能：计算每个学生各门课程的总分和平均分 
+void AverSumofEveryStudent(STU stu[], int n, int m)
+{
+	int i, j;
+	for (i=0; i<n; i++)
+	{
+	    stu[i].sum = 0;
+	    for (j=0; j<m; j++)
+	    {
+            stu[i].sum = stu[i].sum + stu[i].score[j];
+	    }
+	    stu[i].aver = m>0 ? stu[i].sum / m : -1;
+	    printf("student %d: sum = %.0f, aver = %.0f\n", 
+i+1, stu[i].sum, stu[i].aver);
+	}	
+}