According to the experience of querying Baidu, the steps of searching for pictures with Nitu.com are as follows:

1. First, open the home page of Nitu.com;

2. Search the drop-down list and select User Name;

3. Enter the user name of this picture and click "Search";

You can search all the pictures uploaded by this user, and the pictures you are looking for are among them. (If you have the picture number, you can find this picture more quickly and accurately. )

The so-called search engine is a retrieval technology that uses specific strategies to retrieve specified information from the Internet and feed it back to users according to users' needs and certain algorithms. Search engines rely on a variety of technologies, such as web crawler technology, retrieval sorting technology, web page processing technology, big data processing technology, natural language processing technology and so on. To provide fast and highly relevant information services for information retrieval users. The core modules of search engine technology generally include crawler, indexing, retrieval and sorting, and a series of other auxiliary modules can be added to create a better network environment for users.