save project

diy.py

+new_data = ''
 with open(r'D:\deyauyfiuayfuay\test.txt','r',encoding='utf-8') as file_1:
     for data in file_1:
         if "李文" in data:
-            print("在数据里面！！")
-        print(data)
\ No newline at end of file
+            data=data.replace("李文：9本","李文：20本")
+        new_data += data
+        print(new_data)
+with open(r'D:\deyauyfiuayfuay\test.txt','w',encoding='utf-8') as file_1:
+    file_1.write(new_data)
\ No newline at end of file