save project

diy.py

@@ -2,8 +2,9 @@
 # 打开、创建文件，这里的路径要换成自己哦~
 new_data=""
 with open(r'C:\Users\Administrator\Desktop\1.txt','r',encoding='utf-8') as file:
-    #遍历
-    for data in file:
+   for data in file:
         if '小李：12本' in data:
             data.replace('小兰：12本','李文：9本')
             print("存在")
+with open(r'C:\Users\Administrator\Desktop\1.txt','r',encoding='utf-8') as file:
+    file.write(new_data)
\ No newline at end of file