save project

diy.py

-with open(r"C:\Users\Administrator\Desktop\book.txt,"w"encoding='utf-8') as s:
+with open(r"C:\Users\Administrator\Desktop\book.txt,"r"encoding='utf-8') as s:
 sb:
    sb.write('小兰:12')
    sb.write('小丽:11本')
    sb.write('李文:9本')
      for i in date
-     if"小强:10本"in date
-      print("小强:11本")
-
+       if"小强:10本"in date
+          print("小强:11本")
+          date=date.replace("小强:10本","小强:11本")
+          new_ date += date
+with open(r"C:\Users\Administrator\Desktop\book.txt,"r"encoding='utf-8') as s:
+sb:
+          sb cloce 
+