功能:

从内部缓冲区取出单词文本串。对英语文本，该函数最长取出一行内以

空格为界的三个英文单词串，遇空格，非英文字母及除‘-’外的标点符

号，则终止取词。对汉字文本，该函数最长取出一行汉字串，遇英语字

母，标点符号等非汉语字符，则终止取词。该函数不能同时取出英语和

汉语字符。

-Features:

Remove the word text string　the internal buffer. English text, the function within the longest line to remove

Space for three English words string sector, the case of space, in addition to non-English letters and　-　outside punctuation

No, the termination of the word. Chinese characters of text, this function fetches a row the longest string of characters, the case of the English word

Mother, punctuation and other non-English characters, the termination of the word. This function can not be taken out of English and

Chinese characters.