save project

diy.py

@@ -8,9 +8,14 @@
 with open(r"C:\Users\windoins\Desktop\123.txt","r",encoding="utf-8")as file:
 with open(r"C:\Users\windoins\Desktop\123.txt","r",encoding="utf-8")as file:
   
   
     a=file.readlines()
     a=file.readlines()
-    
+    new_data=""
     for data in a:
     for data in a:
         print(data,end="")
         print(data,end="")
         if "小兰：12本" in data:
         if "小兰：12本" in data:
             print("数据在")
             print("数据在")
+            data=data.replace("小兰：12","小兰：10")
+        new_data=new_data+data
+    print(new_data)
 
 
+with open(r"C:\Users\windoins\Desktop\123.txt","w",encoding="utf-8")as file:
+    file.write(new_data)