save project

diy.py

@@ -2,3 +2,5 @@
 mingxi=open(r"C:\Users\Administrator\Desktop\jvanzeng.txt","w",encoding="utf-8")
 mingxi.write("小兰：12本""小丽：11本""李文：9本""张伟：16本")
 mingxi.close()
+with open(r"C:\Users\Administrator\Desktop\jvanzeng.txt","a",encoding="utf-8") as mingxi:
+    mingxi.write("小强：10本""李明：15本")
\ No newline at end of file