auto save

diy.py

@@ -2,15 +2,5 @@
 #a=open("C:\\Users\\Administrator\\Desktop\\book.txt","w",encoding="utf-8")
 #a.write('小兰：12本')
 #a.close()
-with open(r"C:\Users\Administrator\Desktop\book.txt","r",encoding="utf-8") as f:
-    new=''
-    for i in f:
-        if'小兰：12本'in i:
-            i=i.replace('小兰：12本','小兰：14本')
-        new=new+i
-print(new)
-with open(r"C:\Users\Administrator\Desktop\book.txt","w",encoding="utf-8") as f:
-    f.write(new)
-    #q.write('小兰：12本\n小丽：11本\n李文：9本\n张伟：16本')
-    #str.replace('小兰：12本','小兰：14本')
-    #str.replace()
\ No newline at end of file
+with open("C:\\Users\\Administrator\\Desktop\\book.txt","w",encoding="utf-8") as q:
+    q.write('小兰：12本\n小丽：11本')
\ No newline at end of file