robot test case: for loop does not work - robotframework

Question

I have following codes, some of them work but...(These sections are in 1 file and consecutive, split for clarification)
*** Settings ***
Documentation documentation for this test suite
... requires command line variables: IP
resource resource/applicationcontrol.robot
resource resource/clientmgr.robot
Suite Setup applicationcontrol.Open connections
Suite Teardown Close connections
Test Setup Exit Current Running Apps
*** Variables ***
#{apps} 1stapp 2ndapp 3rdapp 4thapp
=====================================================
*** Keywords ***
App For Port [Arguments] ${app}
:for ${port_num} IN 1 2
\ applicationcontrol.Launch application ${app} ${port_num}
\ ${status} Run Keyword And Return Status Check launching status ${app} ${port_num}
\ Continue For Loop If '${status}'=='False'
\ Run Keyword If '${status}'=='True' Add Success
\ Exit For Loop <--Line in question
Q: Exit For Loop exits the most enclosing For loop or all nesting For Loops?
======================================================
Add Success
${success_num} Evaluate ${success_num} + 1
Ratio Statistics
${fail_num} Evaluate ${total_num} - ${success_num}
Log Total: ${total_num}, Failed: <p style="color:red">${fail_num}</p> HTML
Exit Current Running Apps
:for ${port_num} IN 1 2
\ Exit application ${port_num}
\ Check exit status ${port_num} <--Line in question
Q: Check exit status ${port_num} gets executed only for 1st loop...don't understand why
======================================================
*** Test Cases ***
Launch and exit multiple apps [Arguments] #{apps}
${temp} Get Length ${apps}
Set Test Variable ${total_num} ${temp}
Set Test Variable ${success_num} 0
:for ${app} IN #{apps} <--Line in question
\ App For Port ${app}
\ Exit Current Running Apps
Ratio Statistics <--Line in question
Q: :for ${app} IN #{apps} This For Loop should have executed 4 times, but only executed for 1 time.
Q: Ratio Statistics never gets executed. How can I get it executed?
I cannot find answers on internet or User's Guide. Thanks in advance.
Additional:
resource/applicationcontrol.robot:
Exit application [Arguments] ${PORT}
${RUNNING_RESPONSE} send cmd appsvc get_apps
${RUNNING_APPS} response parameter ${RUNNING_RESPONSE}
Pass Execution If '${RUNNING_APPS}' == '${None}' No app running on ${PORT}
${TARGET_APP} get target application ${RUNNING_APPS} ${PORT}
send cmd appsvc exit_app ${TARGET_APP}

Answer 1

Exit For Loop exits the most enclosing For loop or all nesting For Loops?
Real nested for loops don't exist in Robot.
You can just have a loop that calls a keyword that has a loop.
Anyway, "Exit For Loop" exist the current loop (most enclosing if you want)
Check exit status ${port_num} gets executed only for 1st
for ${app} IN #{apps} This For Loop should have executed 4 times
Ratio Statistics never gets executed. How can I get it executed?We don't have enough information to help you on those questions. Yes, it should work the way you describe... See Brian's comment.

Answer 2

Thanks everyone, I found the answer.
In resource/applicationcontrol.robot:
Exit application [Arguments] ${PORT}
${RUNNING_RESPONSE} send cmd appsvc get_apps
${RUNNING_APPS} response parameter ${RUNNING_RESPONSE}
Pass Execution If '${RUNNING_APPS}' == '${None}' No app running on ${PORT}
${TARGET_APP} get target application ${RUNNING_APPS} ${PORT}
send cmd appsvc exit_app ${TARGET_APP}
The Pass Execution If statement exits current test case in question instead of the rest of that keyword, which is what I want it to be.
So my solution is putting the rest of this keyword into a new 'helper' keyword and using Run Keyword Unless instead to invoke the new keyword.