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------------------------------------------------------------------------------- 说明: White space is defined as the ASCII space character, horizontal tab character, form feed character, and line terminator characters (§3.4). ------------------------------------------------------------------------------ 文法： WhiteSpace: the ASCII SP character, also known as "space" the ASCII HT character, also known as "horizontal tab" the ASCII FF character, also known as "form feed" LineTerminator
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原文地址：http://www.cnblogs.com/xyhr/p/4240487.html
