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\bell010\Desktop\note.txt",'ww',encoding='utf-8') as  file:
-    file
\ No newline at end of file
+with open(r"C:\Users\bell010\Desktop\note.txt",'r',encoding='utf-8') as  file:
+    for data in file:
+        if '2' in data:
+            data=data.replace('2','1')
+        if '3' in data:
+            data=data.replace('3','4')
+        new_data += data
+        
+
+with open(r"C:\Users\bell010\Desktop\note.txt",'w',encoding='utf-8')
+    file1.write(new_data)
\ No newline at end of file