save project

diy.py

@@ -10,12 +10,12 @@ with open(r"C:\Users\Dell\Desktop\book.txt",'a',encoding='utf-8') as file1:
     file1.write('李明:15本\n')
     file1.write('李明:15本\n')
 new_data=''
 new_data=''
 with open(r"C:\Users\Dell\Desktop\book.txt",'r',encoding='utf-8') as file1:
 with open(r"C:\Users\Dell\Desktop\book.txt",'r',encoding='utf-8') as file1:
-    for i in file1:
+    for data in file1:
         if '小强:10本' in file1:
         if '小强:10本' in file1:
             data=data.replace('小强:10本','小强:11本')
             data=data.replace('小强:10本','小强:11本')
         if '小兰:12本' in file1:
         if '小兰:12本' in file1:
             data=data.replace('小兰:12本','小兰:14本')
             data=data.replace('小兰:12本','小兰:14本')
-        new_data +=data
+        new_data+=data
 with open(r"C:\Users\Dell\Desktop\book.txt",'w',encoding='utf-8') as file1:
 with open(r"C:\Users\Dell\Desktop\book.txt",'w',encoding='utf-8') as file1:
     file1.write(new_data)
     file1.write(new_data)
 with open(r"C:\Users\Dell\Desktop\book.txt",'r',encoding='utf-8') as file1:
 with open(r"C:\Users\Dell\Desktop\book.txt",'r',encoding='utf-8') as file1: