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'
+fil=open(r'C:\Users\10717\Desktop\新建文件夹\book.txt','w',encoding='utf-8')
+fil.write('小兰:12\n')
+fil.write('小丽:11\n')
+fil.write('李文:9\n')
+fil.write('张伟:16\n')
+fil.close()
+
+fil=open(r'C:\Users\10717\Desktop\新建文件夹\book.txt','a',encoding='utf-8')
+fil.write('小:12\n')
+fil.write('小:11\n')
+fil.write('李:9\n')
+fil.write('张:16\n')
+fil.close()
+
+with open(r'C:\Users\10717\Desktop\新建文件夹\book.txt','a',encoding='utf-8') as fil:
+    fil.write('兰:12\n')
+    fil.write('丽:11\n')
+    fil.write('文:9\n')
+    fil.write('伟:16\n')
\ No newline at end of file