1. 打开/Applications/Automator.app应用，新建一个应用程序。（新建服务也可以，只不过服务需要选中文件或文件夹右键来新建，应用程序可以拖到finder的工具栏，点击新建）
2. 左侧资源库选择实用工具，把下面AppleScript代码贴到右侧的代码区域。
3. 下面代码配置是新建文件后用sublime text打开。如果没有sublime text或不想打开要删除下面这行代码。

do shell script "subl " & newTxt

AppleScript：

tell application "Finder"tryset currentFolder to (folder of the front window)set currentPath to (POSIX path of (target of the front window as alias))set libkIsDeskTop to falseon errorset currentFolder to desktopset currentPath to (POSIX path of (desktop as alias))set libkIsDeskTop to trueend tryset txtName to text returned of (display dialog "请输入文件名" default answer "新建文本文档.txt")if length of txtName = 0 thenset ext to "txt"set baseName to "新建文本文档"set txtName to "新建文本文档.txt"elseset prevTID to text item delimiters of AppleScriptset text item delimiters of AppleScript to "."set libkNameParts to text items of txtNameset text item delimiters of AppleScript to prevTIDset len to length of libkNamePartsif len = 1 thenset ext to "txt"set baseName to txtNameset txtName to baseName & "." & extelse if len = 2 thenset ext to last text item of libkNamePartsset baseName to item 1 of libkNameParts as textelseset ext to last text item of libkNamePartsset baseName to text 1 thru -((length of ext) + 1) of txtNameend ifend ifset n to 1considering casetell (get name of currentFolder's files) to repeat while txtName is in itset txtName to baseName & "_" & n & "." & extset n to n + 1end repeatend consideringset newTxt to currentPath & txtNamedo shell script "touch " & newTxtif libkIsDeskTop is false then select the file txtName in currentFolderdo shell script "subl " & newTxt
end tell