Using tmpfile avoids collisions should the Webscript be called by several users at the same time.
tmpfile能够避免几个用户同时调用这个web脚本时所产生的冲突。
2
The key here is the submit tag, which enables you to submit information to a script in the same way that you submit fields to any normal Webscript.
此处的关键因素是 submit 标记，它使我们能够将信息提交给脚本，并且其方式与将字段提交给任何普通 Web 脚本的方式一样。
3
Most voice browser services access the VXML file by reading from a URL, so you need to develop a CGI or other dynamic Webscript to create the information.