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'
-with open(r'C:\Users\OMEN\Desktop\book.txt','a',encoding='utf-8') as file1:
-    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')
\ No newline at end of file
+# with open(r'C:\Users\OMEN\Desktop\book.txt','a',encoding='utf-8') as file1:
+#     file1.write("小强：10本")
+with open(r'C:\Users\OMEN\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")
\ No newline at end of file