diff --git a/ztt15.md b/ztt15.md
new file mode 100644
index 0000000..bedcd91
--- /dev/null
+++ b/ztt15.md
@@ -0,0 +1,14 @@
+// 15函数功能： 打印学生成绩 
+void PrintScore(STU stu[], int n, int m)
+{
+	int i, j;
+	for (i=0; i<n; i++)
+	{
+		printf("%ld\t%s\t", stu[i].num, stu[i].name);
+		for (j=0; j<m; j++)
+		{
+			printf("%.0f\t", stu[i].score[j]);
+		}
+		printf("%.0f\t%.0f\n", stu[i].sum, stu[i].aver);
+	}
+}
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diff --git a/ztt5.md b/ztt5.md
deleted file mode 100644
index 47fb0a4..0000000
--- a/ztt5.md
+++ /dev/null
@@ -1,5 +0,0 @@
-// 5使数据按升序排序 
-int Ascending(float a, float b)
-{
-	return a < b;      // 这样比较决定了按升序排序，如果a<b，则交换 
-}
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