auto save

demo.py

+list=["222","333","333","4444","333"]
+list.remove("333")
+print(list)
\ No newline at end of file

ttt.py

+new_data = ""
+with open(r'C:\Users\HH\Desktop\test.txt','r',encoding='utf-8') as file:
+    for data in file:
+        print(data)
+        if "小强：12本" in data:
+            print("在文件中")
+            data.replace("小强：12本","小强：10本")
+        new_data += data
+with open(r'C:\Users\HH\Desktop\test.txt','w',encoding='utf-8') as file:
+    file.write(new_data)
+