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'
+i1=[]
+with open("C:\\Users\\EDY\\Desktop\\nar.txt",'w',encoding="utf-8")as f:
+    f.write('u')
 with open("C:\\Users\\EDY\\Desktop\\nar.txt",'r',encoding="utf-8")as f:
     for i in f:
-        if 'ui'in i:
-            print('在数据中')
\ No newline at end of file
+        if 'u'in i:
+            i=i.replace('u','d')
+        i1+=i
+
+
+with open("C:\\Users\\EDY\\Desktop\\nar.txt",'w',encoding="utf-8")as f:
+    for i in i1:
+        f.write(i)
\ No newline at end of file