If it is not installed, download a QQ browser and install it, as shown below.
Now that we have installed the search engine, we can access the Internet through a browser.
In the top-right corner of the QQ browser, click "three horizontal" in the drop-down menu, click "QQ browser settings", and click "open.
On the page that appears, click "general settings"-"default search engine" as shown below.
For example, if you select "Baidu", you can set the Baidu homepage as the default search engine.
Finally, click "application" in the lower-right corner of the QQ browser settings page and click "OK" to complete the settings.
After modifying this method, the default search engine will be Baidu. In the future, Baidu search engine will be used to search the content when we enter the search in the url bar, well, this is the end of the method. I hope it will be helpful to you.