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\HP\Desktop\test.txt','r',encoding='utf-8')as file:
+    for data in file:
+        if "小强：12本"  in data:
+            print('数据存在')

wery.py

+file1=open(r'C:\Users\HP\Desktop\test.txt','w',encoding='utf-8')
+file1.write('小兰:12本')
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