AppleScript返回Null（）

Question

当我运行AppleScript时，我收到错误（null）。我唯一能想到的是文件路径格式不正确。任何帮助将不胜感激。

on run {input, parameters}

    set picFolder to alias "Users:cd:Dropbox (Personal):Camera Uploads:"
    set screenshotFolder to alias "Users:cd:Dropbox (Personal):Camera Uploads:Screenshots:"

    tell application "System Events"
        set photos to path of files of picFolder whose kind is "Portable Network Graphics image"
    end tell

    set screenshots to {}
    repeat with imgPath in photos
        set imgAlias to alias imgPath
        tell application "Image Events"
            set img to open imgPath
            if ((dimensions of img = {640, 1136}) or (dimensions of img = {640, 960}) or (dimensions of img = {1024, 768})) then
                set end of screenshots to imgAlias
            end if
            close img
        end tell
    end repeat

    tell application "Finder"
        move screenshots to screenshotFolder
    end tell


    return input
end run

Answer 1

主脚本适用于我，但如果我按照脚本编辑器中的方式运行它，则不行。我必须注释掉{input, parameters}和return input，因为运行处理程序（在此上下文中）不能接受参数（或者您可以更改处理程序的名称）。如果我这样做似乎没有问题（除了明显缺乏纠错，例如，如果文件已经存在，等等）。您可以使用运行处理程序的参数，但是您无法在脚本编辑器中以这种方式测试它（我假设您最终要从命令行发送参数）。