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'
 # 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'
-new_i=''
 with open(r'C:\Users\xc\Desktop\test.txt','r',encoding='utf-8') as file:
 with open(r'C:\Users\xc\Desktop\test.txt','r',encoding='utf-8') as file:
     for i in file:
     for i in file:
         if '小强:10本' in i:
         if '小强:10本' in i:
-            i=i.replace('小强:10本','小强:11本')
-        new_i+=i
-
-with open(r'C:\Users\xc\Desktop\test.txt','w',encoding='utf-8') as file:
+            print('小强数据在文件中')
+        if '小兰:12本' in i:
+            print('小兰数据在文件中')
\ No newline at end of file
-    file.write(new_i)
-print(new_i)
\ No newline at end of file