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=" "
 filel=open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')
 for data in filel:
     if '小强:10' in data:
-        print('小强在数据中')
+        data=data.replace('小强:10','小强:11')
     if '小兰:12' in data:
-        print('小兰在数据中')
+        data=data.replace('小兰:12','小兰:14')
+    new_data +=data
+filel=open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')
+filel.write(new_data)
+filel=open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-8')
+a=filel.read()
+
+
 filel.close()
\ No newline at end of file