save project

diy.py

@@ -9,11 +9,14 @@ with open('C:\\Users\\Administrator\\Desktop\\test.txt','r',encoding='utf-8') as
     #file1.write('小强：12本\n')
     #a=file1.read()
     #print(a)
+    new_i=""    
     for i in file1:
         if '小强：12本' in i:
-            print("在其中")
-        if '小兰：12本' in i:
-            print("在其中")    
+            i=i.replace('小强：12本','小强：11本')
+        new_i+=i
+with open('C:\\Users\\Administrator\\Desktop\\test.txt','w',encoding='utf-8') as file1:
+    file1.write(new_i)          
 
-
-    
\ No newline at end of file
+with open('C:\\Users\\Administrator\\Desktop\\test.txt','r',encoding='utf-8') as file1:
+    a=file1.read()
+    print(a)
\ No newline at end of file