save project

diy.py

-with open(r"C:\Users\xuank\Desktop\diy.txt",'a',encoding='utf-8') as word:
+with open(r"C:\Users\xuank\Desktop\diy.txt",'w',encoding='utf-8') as word:
     word.write("小兰：20本\n")
     word.write("小强：19本\n")
     word.write("李明：10本\n")