auto save

hj.py

+with open(r"C:\Users\windoins\Desktop\123.txt","w",encoding="utf-8")as file:
+    file.write("锦瑟\n")
+    file.write("[唐] 李商隐\n")
+    file.write("锦瑟无端五十弦，\n")
+    file.write("一弦一柱思华年。\n")
+    file.write("庄生晓梦迷蝴蝶，\n")
+    file.write("望帝春心托杜鹃。\n")
+    file.write("沧海月明珠有泪，\n")
+    file.write("蓝田日暖玉生烟。\n")
+    file.write("此情可待成追忆，\n")
+    file.write("只是当时已惘然。\n")
+with open(r"C:\Users\windoins\Desktop\123.txt","r",encoding="utf-8")as file:
+      
+    a=file.readlines()
+    new_file=""
+    for file in a:
+        
+        if "蓝田日暖玉生烟。" in file:
+            
+            file=file.replace("蓝田日暖玉生烟。","——————————")
+        
+    
+        if "此情可待成追忆，" in file:
+         
+            file=file.replace("此情可待成追忆，","——————————")
+        new_file=new_file+file
+        
+    print(new_file)
+
+
+with open(r"C:\Users\windoins\Desktop\123.txt","w",encoding="utf-8")as file:
+    file.write(new_file)
+
+