save project

diy.py

-with open(r"D:\360Downloads\book.txt","w",encoding="utf-8") as file1:
+new_data=""
+with open(r"D:\360Downloads\book.txt","r",encoding="utf-8") as file1:
     for data in file1:
         if "10" in data:
-            print(1)
+            data=data.replace("10","11")
+        if "12" in data:
+            data=data.replace("12","14")
+        new_data+=data
+with open(r"D:\360Downloads\book.txt","w",encoding="utf-8") as file1:
+    file1.write(new_data)
+with open(r"D:\360Downloads\book.txt","w",encoding="utf-8") as file1:
+    a=file1.read()
+    print(a)
+