save project

diy2.py

+newdate=''
 with open('C:\\Users\\john\\Desktop\\tv.txt','r',encoding='utf-8') as file1:
     for date in file1:
-        if '张伟：16' in date:
-            print('张伟在文件中。')
+        if '小兰：12' in date:
+            date=date.replace('小兰：12','小兰，19')
+        newdate+=date
+with open('C:\\Users\\john\\Desktop\\tv.txt','w',encoding='utf-8') as file1:        
+    print(newdate)
+    #file1.write(newdate)
+          
+        
             
     
\ No newline at end of file