save project

jntm.py

 with open(r'C:\Users\fuysy\Desktop\test.txt','r',encoding='utf-8')as file1:
     for data in file1:
-        
+
         if '小强：10本' in data:
             print('数据在文件中')
+new_data=''
+with open(r'c:\Users\fuysy\Desktop\test.txt','r',encoding='utf-8')as file1:
+    for data in file1:
+        if'小强:10本' in data:
+            data=data