diff --git a/hello1.md b/hello1.md
new file mode 100644
index 0000000..fd1a645
--- /dev/null
+++ b/hello1.md
@@ -0,0 +1,18 @@
+void  AverSumofEveryCourse(STU stu[], int n, int m)
+{
+	int i, j;
+    float sum[COURSE_NUM], aver[COURSE_NUM];
+    /* ---------- begain ---------- */
+	for (j=0; j<m; j++)
+	{
+	    sum[j] = 0;
+	    for (i=0; i<n; i++)
+	    {
+            sum[j] +=  stu[i].score[j];
+	    }
+        aver[j]=sum[j]/i;
+        printf("student %d: sum = %.0f, aver = %.0f\n", 
+j+1, sum[j], aver[j]); 
+    }
+    /* ----------- end ----------- */
+}
\ No newline at end of file