save project

ui.py

@@ -2,4 +2,6 @@ with open(r"C:\Users\win 10\Desktop\新建文本文档.txt","r",encoding="utf=8"
     for c4 in file:
         if"小兰:38本"in c4:
             c4=c4.replace("小兰：38本","小兰:39本")
-            print("数据在文件中") 
\ No newline at end of file
+        a+=c4
+with open(r"C:\Users\win 10\Desktop\新建文本文档.txt","r",encoding="utf=8")as file:
+    file.write(a)
\ No newline at end of file