TEX Quotes（思维）

TeX is a typesetting language developed by Donald Knuth. It takes source text together with a few typesetting instructions and produces, one hopes, a beautiful document. Beautiful documents use and " to delimit quotations, rather than the mundane " which is what is provided by most keyboards. Keyboards typically do not have an oriented double-quote, but they do have a left-single-quote ` and a right-single-quote '. Check your keyboard now to locate the left-single-quote key ` (sometimes called thebackquote key") and the right-single-quote key ’ (sometimes called the apostrophe" or justquote"). Be careful not to confuse the left-single-quote with the ``backslash" key \. TeX lets the user type two left-single-quotes `` to create a left-double-quote `` and two right-single-quotes '' to create a right-double-quote(键盘通常没有定向双引号，但它们有左单引号和右单引号。现在检查你们的键盘，找到左单引号键（有时称为反引号键）和右单引号键’（有时称为撇号或只是引号）。注意不要混淆左单引号和“反斜杠”键。TeX允许用户输入两个左单引号“以创建左双引号”和两个右单引号“以创建右双引号”。) ‘