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'
+#l=open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8')
+#l.write('小兰:12本,小丽:11本\n')
+#l.close()
+news=''
+with open(r'C:\Users\Administrator\Desktop\test.txt','r',encoding='utf-8') as l:
+    for data in l:
+        if '李文:9本' in data:
+            data=data.replace('李文:9本','李文:10本')
+        news+=data
+with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as l:
+    l.write(news)
\ No newline at end of file