auto save

test.py

@@ -12,8 +12,13 @@ file.close()
 
 
 
 
 
 
-
+new_data = []
 with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8')as file:
 with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8')as file:
     for data in file:
     for data in file:
         if'a=a'in data:
         if'a=a'in data:
-            print('数据')
+            data=data.replace('a=a','a=b')
\ No newline at end of file
+            print(data)
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')as file:
+    
+    file.write(new_data)
+            
\ No newline at end of file