Computer Science Canada error trap problem |
Author: | kanetix [ Tue Jan 13, 2004 9:26 pm ] |
Post subject: | error trap problem |
i'm having a error trap problem with my project here's the code for the main program: %Main Program introduction loop loop mainMenu if operation < 1 or operation > 7 then put "invalid input" else exit end if end loop if operation = 7 then exit end if loop userInput if amount < 1 then put "invalid input" else exit end if end loop display end loop goodBye Problem is, the "invalid input" never shows, instead whenever you try to put operation as <1 or >7 and you press enter it the number just erases ... why? |
Author: | AsianSensation [ Tue Jan 13, 2004 10:02 pm ] |
Post subject: | |
eh....post up the rest of your code, we don't know the procedures you declared, so post those up as well. |
Author: | help_wanted [ Thu Jan 15, 2004 8:25 pm ] |
Post subject: | mayb |
k first why do you have 2 loops at once?? ![]() |
Author: | Thuged_Out_G [ Thu Jan 15, 2004 8:40 pm ] |
Post subject: | |
2 loops are used to fake a goto line command...heres an example, i didnt understand this at first either lol loop main program...like a menu put "option 1" put "option 2" put "option 3" get selection loop if selection=1 then put "1" exit %when you exit this loop, it will go back to the beginning of the first loop end if end loop end loop therefor you can run your program over and over until the user wants to exit |