save project

diy.py

+with open(r"C:\Users\Administrator\Desktop\book.txt,"w"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")
+
+