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('C:\\Users\\user\\Desktop\\book.txt','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('C:\\Users\\user\\Desktop\\book.txt','a',encoding='utf-8') as file:
+  file.write('小强:10本\n')
+  file.write('李明:15本\n')
+with open('C:\\Users\\user\\Desktop\\book.txt','r',encoding='utf-8') as file1:
+  for data in file1:
+    if'小强:10本'in data:
+        print('小强数据在文件中')  
+    if'小兰:12本'in data:
+        print('小兰数据在文件中')  
+
+
+
+
+