auto save

diy.py

@@ -3,4 +3,16 @@ file=open(r'D:\zm\张晓宇.text','w',encoding='utf-8')
 file.write('小兰：12本、小丽：11本、李文：9本、张伟：16本\n')
 with open(r'D:\zm\张晓宇.text','a',encoding='utf-8') as file:
     file.write('小强：12本\n')
-    file.write('小张：15本\n')
\ No newline at end of file
+    file.write('小张：15本\n')
+
+with open(r'D:\zm\张晓宇.text','r',encoding='utf-8') as file1:
+    new_data=""
+    for i in file1:
+        i=i.replace("小强：12本","小强：11本")
+        new_data+=i
+with open(r'D:\zm\张晓宇.text','w',encoding='utf-8') as file1:
+    file1.write(new_data)
+    print(new_data)
+        
+            
+        
\ No newline at end of file