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'
+# file=open(r'C:\Users\Makcoo-Bellcode\Desktop\book.txt','w',encoding='UTF-8')
+# file.write('小兰:12本\n小丽:11本\n李文:9本\n张伟:16本')
+# file.close()
+
+# with open(r'C:\Users\Makcoo-Bellcode\Desktop\book.txt','a',encoding='utf-8') as file:
+#     file.write('小强:12本\n李明:15本')
+
+with open(r'C:\Users\Makcoo-Bellcode\Desktop\book.txt','r',encoding='utf-8') as file:
+    for data in file:
+        if '小强:10本' in data:
+            print('小强在里面！')
+        if '小兰:12本' in data:
+            print('小兰在里面！')
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