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'
+#file1= open(r'C:\Users\Administrator\Desktop\test','w',encoding='utf-8')
+#file1.write('小兰:12本\n')
+#file1.write('小丽:11本\n')
+#file1.write('李文:9本\n')
+#file1.write('张伟:16本\n')
+#file1.close()
+#with open(r'C:\Users\Administrator\Desktop\test','a',encoding='utf-8')as file:
+#    file.write('李明:12本\n')
+#    file.write('李迎:13本\n')  
+with open(r'C:\Users\Administrator\Desktop\test','r',encoding='utf-8')as file1: 
+  for data in file1:
+     if'小强:10本' in data: 
+         print('强')
+     if'小兰:12本' in data:
+         print('兰')
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