auto save

m.py

+new=''
+with open(r"C:\Users\Administrator\Desktop\dhj.txt",'r',encoding='utf-8') as file:
+    for date in file:
+        if '小fd: 16本' in date:
+            print("in it")
+            date=date.replace('小fd: 16本','小p:13本')
+        new+=date    
\ No newline at end of file

sthjasrdjugtsyhgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg.py

+with open(r"C:\Users\Administrator\Desktop\dhj.txt",'a',encoding='utf-8') as file:
+    file.write('小p:16本\n')
+
+with open(r"C:\Users\Administrator\Desktop\dhj.txt",'w',encoding='utf-8') as file:
+    file.write('小a:16本\n')
\ No newline at end of file