diff --git "a/17 \345\221\250\346\227\245\347\272\242/20260624 \351\241\271\347\233\256\345\210\266\344\275\2342.0.md" "b/17 \345\221\250\346\227\245\347\272\242/20260624 \351\241\271\347\233\256\345\210\266\344\275\2342.0.md"
new file mode 100644
index 0000000000000000000000000000000000000000..559212ce403634d0df95f0d2a5fcb747cf21e97c
--- /dev/null
+++ "b/17 \345\221\250\346\227\245\347\272\242/20260624 \351\241\271\347\233\256\345\210\266\344\275\2342.0.md"	
@@ -0,0 +1,153 @@
+```python
+### 导入库
+import streamlit as st
+import sqlite3
+import pandas as pd
+
+###  设置网页
+st.set_page_config(page_title="美好图书", page_icon="📌")
+
+
+###创建数据库
+# 建表
+def inital_db():
+    # 创建连接
+    conn = sqlite3.connect("data.db")
+    # 执行SQL
+    conn.execute('''
+                 CREATE TABLE IF NOT EXISTS books
+                 (
+                     id
+                     INTEGER
+                     NOT
+                     NULL
+                     PRIMARY
+                     KEY
+                     AUTOINCREMENT,
+                     bookname
+                     TEXT
+                     NOT
+                     NULL,
+                     author
+                     TEXT
+                     NOT
+                     NULL,
+                     price
+                     real
+                     NOT
+                     NULL
+                 )
+                 ''')
+    # 提交(有结果就处理结果)
+    conn.commit()
+    # 关闭连接
+    conn.close()
+
+    # 添加一个图书
+
+
+def add_book(bookname, author, price):
+    conn = sqlite3.connect("data.db")
+    conn.execute("insert into books (bookname, author, price) values (?, ?, ?)", (bookname, author, price))
+    conn.commit()
+    conn.close()
+
+    # 删除一个图书
+
+
+def delete_book(bookid):
+    conn = sqlite3.connect("data.db")
+    conn.execute("delete from books where id = ?", (bookid,))
+    conn.commit()
+    conn.close()
+    st.rerun()
+    # 修改一个图书
+
+
+def update_book(bookid,bookname,author,price):
+    conn = sqlite3.connect("data.db")
+    conn.execute("update books set bookname = ? , author = ? , price = ?  where id = ?", (bookid,bookname,author,price))
+    conn.commit()
+    conn.close()
+
+    # 查询所有图书信息
+
+
+def show_books():
+    conn = sqlite3.connect("data.db")
+    data = conn.execute("select * from books")
+    df = pd.DataFrame(data, columns=["id", "bookname", "author", "price"])
+    conn.close()
+    # 将查询的值返回给调用者
+    return df
+
+    ###  登录初始化,一直处于未登录状态
+
+
+if "logged_in" not in st.session_state:
+    # 就初始化为未登录状态
+    st.session_state.logged_in = False
+# 初始化 数据库表格
+inital_db()
+
+ #####登录界面
+if not st.session_state.logged_in:
+    # 未登录状态显示表单
+    st.title("======美好图书=====")
+    st.subheader("用户登录")
+    with st.form("login"):
+        username = st.text_input("用户名", placeholder="请输入用户名")
+        password = st.text_input("密码", placeholder="请输入密码", type="password")
+        submit = st.form_submit_button("登录", use_container_width=True)
+        ###判断是否已经点击submit
+        if submit:
+            if username == "reeed" and password == "10027":
+                st.success("登录成功")
+                st.session_state.logged_in = True
+                st.rerun()
+            else:
+                st.error("请检查你的用户名或者密码")
+                st.markdown("不好意思!登录失败")
+
+    st.stop()
+###  主界面  (登录成功的界面)
+with st.sidebar:
+    st.title("====你好呀!欢迎你====")
+    st.markdown("---------")
+    menu = st.selectbox("请选择", ["查询所有图书", "添加图书"])
+
+if menu == "查询所有图书":
+    st.title("---图书信息---")
+    ###遍历数据库图书每一行
+    books = show_books()
+    ###遍历前判断有没有书
+    if len(books) > 0:
+        cols = st.columns([2,6,4,4,3])
+        cols[0].write("序号")
+        cols[1].write("书名")
+        cols[2].write("作者")
+        cols[3].write("价格")
+        cols[4].write("操作")
+        for ids,book in books.iterrows():
+            cols = st.columns([2, 6, 4, 4, 3])
+            cols[0].write(ids+1)
+            cols[1].write(book["bookname"])
+            cols[2].write(book["author"])
+            cols[3].write(book["price"])
+            cols[4].button("删除",key=f"{ids}",on_click=delete_book,args=(book["id"],))
+    else:
+        st.warning("暂时没有图书")
+elif menu == "添加图书":
+    st.title("----添加图书----")
+    st.info("在这里你可以添加图书信息")
+    st.markdown("----")
+    with st.form("addbook",clear_on_submit=True):
+        bookname = st.text_input("书名")
+        author = st.text_input("作者")
+        price = st.text_input("价格")
+        submit = st.form_submit_button("提交")
+        if submit:
+            add_book(bookname, author, price)
+            st.success("添加成功!")
+```
+