From bb86b9e28701ada92cc5c84868391366306a8e11 Mon Sep 17 00:00:00 2001
From: ykhao <2649400527@qq.com>
Date: Sun, 21 May 2023 15:20:22 +0800
Subject: [PATCH] ykh

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index a135774..d13a869 100644
--- a/README.md
+++ b/README.md
@@ -360,6 +360,13 @@ Step 2: 显示图表
 
 ![](pictures/make_chart.drawio.svg)
 
+#### query_data
+
+Step 1: 输入学生学号
+Step 2: if学号不存在 then 提示学生不存在并结束 
+Step 3: else 学号存在 then 输出学号、姓名、成绩 
+
+![](pictures/query_data.drawio.svg)
 
 #### confirm