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'
+new_data=""
 with open(r"C:\Users\EDZ\Desktop\as.txt","r",encoding="utf-8") as f:
     for d in f:
         if "小强:10本" in d:
-            print("小强数据在文件中")
-        else:
-            print("No")
-
+            data=data.replace("10","11")
+        new_data +=data
+with open(r"C:\Users\EDZ\Desktop\as.txt","w",encoding="utf-8") as f:
+    f.write(new_data)