save project

diy.py

@@ -3,13 +3,20 @@
 file = open(r"C:\Users\chen\Desktop\text\text.txt","r",encoding="UTF-8")
 #写
 a = file.readlines()
+new_data = ""
 for i in a:
+    print(i)
     if "小兰" in i:
         print("在")
-        print(i)
-        b = i.replace('小兰：12本','小兰：13本')
-        print (b)
+        b =i.replace('小兰：12本','小兰：13本')
+        new_data += b
     else:
+        new_data += i
         print("不在")
 #关
 file.close()
+print (new_data)
+
+file = open(r"C:\Users\chen\Desktop\text\text.txt","w",encoding="UTF-8")
+file.write( new_data)
+file.close()
\ No newline at end of file