将重复性动作进行封装为keyword，在测试用例中调用keyword。
*** Settings ***
Documentation Simple example using SeleniumLibrary.
Library SeleniumLibrary
*** Variables ***
${URL} https://www.baidu.com
${BROWSER} Chrome
*** Test Cases ***
case1
Open Browser ${URL} ${BROWSER}
${title} Baidu Search robot framework
should contain ${title} robot framework_百度搜索
close browser
case2
Open Browser ${URL} ${BROWSER}
${title} Baidu Search selenium
should contain ${title} selenium_百度搜索
close browser
*** Keywords ***
Baidu Search
[Arguments] ${search_key}
Input text id:kw ${search_key}
click button id:su
Evaluate time.sleep(2) time
${title} Get Title
[Return] ${title}
运行结果：
Starting test: Rf Test.Helloworld.case1
20180519 15:29:25.486 : INFO : Opening browser 'Chrome' to base url 'https://www.baidu.com'.
20180519 15:29:31.008 : INFO : Typing text 'robot framework' into text field 'id:kw'.
20180519 15:29:31.349 : INFO : Clicking button 'id:su'.
20180519 15:29:33.639 : INFO : ${title} = robot framework_百度搜索
20180519 15:29:33.641 : INFO : ${title} = robot framework_百度搜索
Ending test: Rf Test.Helloworld.case1
Starting test: Rf Test.Helloworld.case2
20180519 15:29:36.811 : INFO : Opening browser 'Chrome' to base url 'https://www.baidu.com'.
20180519 15:29:42.303 : INFO : Typing text 'selenium' into text field 'id:kw'.
20180519 15:29:42.537 : INFO : Clicking button 'id:su'.
20180519 15:29:44.688 : INFO : ${title} = selenium_百度搜索
20180519 15:29:44.691 : INFO : ${title} = selenium_百度搜索
Ending test: Rf Test.Helloworld.case2