save project

diy.py

@@ -12,7 +12,14 @@
 
 
 with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-') as filel:
 with open(r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-') as filel:
     for data in filel:
     for data in filel:
-        if '小强:10本' in data:
-            print('在')
+        if '小强：10本'in data:
+            data=data.replce('小强：10本','小兰：12本')
         if '小兰：12本' in data:
         if '小兰：12本' in data:
-            print('在')
+            data=data.replce('小兰：12本','小兰：14本')
\ No newline at end of file
+        new_data +=data
+
+with open((r'C:\Users\Administrator\Desktop\book.txt','w',encoding='utf-') as filel:
+   filel.write(new_data)
+with open((r'C:\Users\Administrator\Desktop\book.txt','r',encoding='utf-') as filel:
+    a=filel.read()
+    print(a)
\ No newline at end of file