save project

GBRH.py

-with open(r'C:\Users\玛酷机器人\Desktop\book.txt','a',encoding='utf-8')as file:
-     file.write('小兰:12本\n')
+new_data=""
+with open(r'C:\Users\玛酷机器人\Desktop\book.txt','r',encoding='utf-8')as file1:
\ No newline at end of file
+    for data in file1:
+        if '小兰：12本'in data:
+            data=data.replace('小兰：12本\n','小兰：14本\n')
+        new_data +=data
+with open(r'C:\Users\玛酷机器人\Desktop\book.txt','w',encoding='utf-8')as file1:
+    file1.write(new_data)
+with open(r'C:\Users\玛酷机器人\Desktop\book.txt','r',encoding='utf-8')as file1:
+    a=file1.read()
+    print(a)
\ No newline at end of file