save project

diy.py

-word = open(r"C:\Users\xuank\Desktop\diy.txt",'w',encoding='utf-8')
-word.write("小兰：12本")
-word.write("李文：19本")
-word.write("张伟：10本")
-word.write("小丽：39本")
-word.close()
\ No newline at end of file
+with open(r"C:\Users\xuank\Desktop\diy.txt",'a',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")
+    word.write("小丽：39本\n")