auto save

diy.py

@@ -10,9 +10,18 @@
 # file.write('兰：12本 \n')
 # with open(r'C:\Users\Administrator\Desktop\jm.txt','a' ,encoding='UTF-8') as file:
 #      file.write('兰：12本 \n')
+a=""
 with open(r'C:\Users\Administrator\Desktop\jm.txt','r' ,encoding='UTF-8') as file:
     for data in file:
         if '小强：10本' in data:
-            print('在这里')
-        else:
-            print('不在这里')
\ No newline at end of file
+            data=data.replace('小强：10本','小强：11本')
+            
+        if '小兰:12本' in data:
+            data=data.replace('小兰:12本','小兰:14本')
+        a=a+data
+with open(r'C:\Users\Administrator\Desktop\jm.txt','w' ,encoding='UTF-8') as file:
+    file.write(a)
+    
+with open(r'C:\Users\Administrator\Desktop\jm.txt','r' ,encoding='UTF-8') as file:
+    a=file.read()
+    print(a)