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(r'C:\Users\huawei\Desktop\test.txt','w',encoding = 'utf-8')
-with open(r'C:\Users\huawei\Desktop\test.txt','w',encoding = 'utf-8')as file1:
-    file1.write('小兰：12本\n小丽：11本\n李文：9本\n张伟：16本\n')
+with open(r'C:\Users\huawei\Desktop\test.txt','r',encoding = 'utf-8')as file1:
+    for date in file1:
+        if "小兰：12本" in date:
+            print('数据在文件中')  
+        else :
+            print('数据不在')
 #file1.close()
\ No newline at end of file