a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename;
"most applications provide extensions for the files they create"
"most BASIC files use the filename extension .BAS"
filename extension 例句
英汉例句
there is no application associated with the given filename extension .
没有与所给的文件扩展名相关联的应用程序。
the path to the file. this path should include the filename extension that identifies the type of the image data.
文件路径。这个路径需要包含文件拓展名用来识别图片信息类型。
cannot determine the device type from the given filename extension .
无法通过给定的扩展名确定设备类型。
finally, --doctest-extension lets you specify a filename extension of your own choice (most developers i know would choose .txt or .rst or perhaps .doctest).