save project

diy.py

@@ -19,6 +19,11 @@
 #         file1.write('小强:10本\n')
 #         file1.write('李民:15本\n')
 with open(r"C:\Users\Administrator\Desktop\tes.txt",'r',encoding='utf-8')as file1:
+    new_data=''
     for data in file1:
-        if"张伟:16本"in data:
-           print('在')
\ No newline at end of file
+        if"小强:10本"in data:
+            data=data.replace('小强:10本','小强:11本')
+        new_data+=data    
+        
+with open(r"C:\Users\Administrator\Desktop\tes.txt",'w',encoding='utf-8')as file1:
+    file1.write(new_data)          
\ No newline at end of file