一、在robot文件中定义变量，并引用变量，变量默认是字符串类型
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
查看运行结果：
变量引用结果.png
二、在测试例case1中定义局部变量，此变量只能在case1中引用，${cv1}默认是字符串类型
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${c1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
查看运行结果：
image.png
三、在测试例case1中把局部变量${cv1}，改成全局变量，变量能在其他case中引用：
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${c1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
# ${c1}设置为全局变量
Set Global Variable ${cv1}
case2
Log To Console ${cv1}
查看运行结果：
image.png
四、字符串转换为int类型方法
demo.py
def abc(v1):
return v1+5;
*** Settings ***
#引入demo.py文件
Library demo.py
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${c1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
# ${c1}是全局变量
Set Global Variable ${cv1}
case2
Log To Console ${cv1}
case3
${res} demo.abc ${cv1}
运行结果
运行错误.png
方法一：使用Convert To Integer 命令string类型转换为int类型
*** Settings ***
Library demo.py
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${c1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
# ${c1}是全局变量
Set Global Variable ${cv1}
case2
Log To Console ${cv1}
case3
#${cv1}转换为int类型，并赋值给${t}
${t} Convert To Integer ${cv1}
#${t}执行demo.py中的abc方法
${res} demo.abc ${t}
Log To Console ${res}
测试结果：
测试结果.png
方法二：使用双层嵌套$转换为int类型
*** Settings ***
Library demo.py
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${c1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
# ${c1}是全局变量
Set Global Variable ${cv1}
case2
Log To Console ${cv1}
case3
${t} Convert To Integer ${cv1}
${res} demo.abc ${t}
Log To Console ${res}
case4
#双层嵌套,${${cv1}}转换string类型为int类型
${res} demo.abc ${${cv1}}
Log To Console ${res}
方法二测试结果
使用${${cv1}}转换string类型为int类型.png
四、int类型转换为字符串方法
demo.py内容：
def abc(v1):
return v1+5;
def abcstr(v1):
return v1+'string'
直接引用int执行string命令，提示错误
*** Settings ***
Library demo.py
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${c1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
# ${c1}是全局变量
Set Global Variable ${cv1}
case2
Log To Console ${cv1}
case3
${t} Convert To Integer ${cv1}
${res} demo.abc ${t}
Log To Console ${res}
case4
${res} demo.abc ${${cv1}}
Log To Console ${res}
case5
${str_res} demo.abcstr ${res}
Log To Console ${str_res}
运行结果：
image.png
解决方法：使用Convert To String命令，把int类型转换为string类型
*** Settings ***
Library demo.py
*** Variable ***
${var1} tom1
${var2} 1234
***Test Cases***
case1
Log To Console Hello World!
Log To Console ${var1} ${var2}
# ${cv1}是局部变量
${cv1} Set Variable 23
Log To Console ${cv1}
# ${cv1}是全局变量
Set Global Variable ${cv1}
case2
Log To Console ${cv1}
case3
${t} Convert To Integer ${cv1}
${res} demo.abc ${t}
Log To Console ${res}
case4
${res} demo.abc ${${cv1}}
Log To Console ${res}
#转换${res}为string类型
${str} Convert To String ${res}
${str_res} demo.abcstr ${str}
Log To Console ${str_res}
运行结果：
image.png
