save project

diy.py

@@ -2,11 +2,5 @@
 #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()
-new_data='' 
-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')
-        new_data+=data
-with open(r'C:\Users\Administrator\Desktop\test.txt','w',encoding='utf-8') as l:   
-  l.write(new_data)
\ No newline at end of file
+with open(r'C:\Users\Administrator\Desktop\test.txt','a',encoding='utf-8') as l:
+    l.write('张伟:16本\n,李文:9本\n')
\ No newline at end of file