auto save

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'
+#filter=open(r'c\:Users\CM\Desktop\test.'w'encoding='utf-8)
+#filter.write('小兰,12本')
+#filter.write('小丽,11本')
+#filter.write('李文，9本')
+#filter.write('张伟，16本')
+#filter.close()
+filter=open(r'c\:Users\CM\Desktop\test.'w'encoding='utf-8)
+filter.write('小强,10本')
+filter.write('李明,15本')
+filter.close()
+
+with filter=open(r'c\:Users\CM\Desktop\test.'w'encoding='utf-8) as filter:
+     for data in filter:
+         if '小强：10本' in data:
+