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\Lenovo\Desktop\test.txt','r',encoding='utf-8') as file:
-    for data in file:
+new_data=''
+with open(r'C:\Users\Lenovo\Desktop\test.txt','r',encoding='utf-8') as file1:
+    for data in file1:
         if'小强:12本'in data:
         if'小强:12本'in data:
-            print('数据在文件中')
+            data=data.replace('小强:12本','小强:10本')
+        new_data +=data
+
+
+
+with open(r'C:\Users\Lenovo\Desktop\test.txt','r',encoding='utf-8') as file1:
+    file1.write(new_data)
\ No newline at end of file