save project

diy.py

 # 写入同学们的捐赠明细：'小兰：12本'、'小丽：11本'、'李文：9本'、'张伟：16本'
-file1=open(r"C:\Users\de'l'l\Desktop\test.txt","w",encoding='utf-8')
-file1.write("小兰,12本")
-file1.close()
+with open(r"C:\Users\de'l'l\Desktop\test.txt","a",encoding='utf-8') as file1:
+                                                                            file1.write("小丽,15本\n")
+
+