说明：  本程序用来删除文本文件的空行，十分有效。凡是文本文件中的空行都能删除而不影响整个文本的内容。当您导入文本文件后，本段内容自动清空，不会添加到您的文档中。
(This procedure used to delete text file of the blank lines, very effective. Any text file can delete the blank lines without affecting the contents of the text as a whole. When you import the text file, automatically empty the contents of this paragraph will not add to your document.)