1. A method for performing a search in a browser implemented by a computing terminal comprising a processor and a memory, comprising: receiving one or more keywords entered by a user in a current search engine through the browser; based on the keywords entered in the current search engine, searching data from the current search engine; displaying a first search engine results page from the current search engine to the user; after the first search engine results page is displayed, detecting an operation event of the user in the first search engine results page, the operation event being one of a scrolling operation event and a clicking event; determining whether the operation event of the user meets preset switching criteria, wherein the preset switching criteria include at least one of: a scrolling operation event that scrolls to a bottom of the first search engine results page; a scrolling operation event that scrolls to the bottom of the first search engine results page and re-scrolls back to a top of the first search engine results page; and a clicking event on a button that requests a next results page; when determining the operation event of the user in the first search engine results page meets the preset switching criteria, displaying alternative search engines on a search engine switching user interface, wherein the search engine switching user interface is not rendered until the operation event meets the preset switching criteria; extracting a search web address template corresponding to an alternative search engine selected by the user; loading the keywords entered in the current search engine into the search web address template corresponding to the alternative search engine to search data from the alternative search engine; displaying a second search engine results page from the selected alternative search engine; when the user clicks a search result link in the second search engine results page to enter a webpage corresponding to the search result link, cancelling display of the search engine switching user interface; and when detecting that the user returns to the second search engine results page from the webpage corresponding to the search result link, redisplaying the search engine switching user interface.
1. A method for performing a search in a browser implemented by a computing terminal comprising a processor and a memory, comprising: receiving one or more keywords entered by a user in a current search engine through the browser; based on the keywords entered in the current search engine, searching data from the current search engine; displaying a first search engine results page from the current search engine to the user; after the first search engine results page is displayed, detecting an operation event of the user in the first search engine results page, the operation event being one of a scrolling operation event and a clicking event; determining whether the operation event of the user meets preset switching criteria, wherein the preset switching criteria include at least one of: a scrolling operation event that scrolls to a bottom of the first search engine results page; a scrolling operation event that scrolls to the bottom of the first search engine results page and re-scrolls back to a top of the first search engine results page; and a clicking event on a button that requests a next results page; when determining the operation event of the user in the first search engine results page meets the preset switching criteria, displaying alternative search engines on a search engine switching user interface, wherein the search engine switching user interface is not rendered until the operation event meets the preset switching criteria; extracting a search web address template corresponding to an alternative search engine selected by the user; loading the keywords entered in the current search engine into the search web address template corresponding to the alternative search engine to search data from the alternative search engine; displaying a second search engine results page from the selected alternative search engine; when the user clicks a search result link in the second search engine results page to enter a webpage corresponding to the search result link, cancelling display of the search engine switching user interface; and when detecting that the user returns to the second search engine results page from the webpage corresponding to the search result link, redisplaying the search engine switching user interface. 8. The method according to claim 1 , wherein loading the keywords entered in the current search engine into the search web address template corresponding to the alternative search engine comprises: forming a web address by adding the keywords to follow a last symbol of the search web address template corresponding to the alternative search engine; and visiting the formed web address to search data from the alternative search engine.