你已经读过有错误的工作的AppleScript的指南？

Did you already read working with errors in the Applescript guide?

样code：

set CB to the clipboard
try
    set bugNum to CB as number
on error errStr number errNum
    set bugNum to -1
end try
display dialog "Number from the clipboard: " & bugNum

我跳过了code中的第一次全面，因为我想通了导游是pretty清晰，远远超过任何我可以在这里写更多有用：）

I skipped the code the first time round since I figured the guide was pretty clear, and far more useful than anything I could write here :)