1·CDATA sections are replaced with their literal character content.
将cdata节替换为它们的文字字符内容。
2·Character and parsed entity references are replaced with the literal characters (excepting special characters).
字符和已解析实体引用替换为文字字符(特殊字符除外)。
3·A URI Template is a string value that includes a mixture of literal character sequences and specialized tokens that, when processed with a set of input values, yields a URI. For example.
URI模板是一个字符串值，由文字字符序列和特殊的标记组成，可以将一系列输入值转换为一个URI。
4·The simplest character class is a single character, which is just included in the pattern as a literal.
最简单的字符类就是单个字符，它在模式中只是一个字。
5·Literals: Any character that doesn't have special meaning within an expression is considered a literal and matches itself.
文字(Literal)：表达式内任何不具有特殊意义的字符都被看作是一个文字，并与自身匹配。
6·The Michael Douglas character in “Wall Street” is Gordon “Gecko” (even Oliver Stone isn’t quite that literal) and the head of Berkshire Hathaway “Warrant Buffet”.
迈克尔•道格拉斯在“华尔街”中出演的角色叫戈登•“蛤蚧”（就是奥利佛•斯通也不敢照字面意思来），伯克希尔哈撒韦公司的领导人是“巴菲特”。
7·If the parameter is a character-based input parameter, then you would specify the literal value surrounded in single quotes.
如果参数是基于字符的输入参数，那么在单引号中指定字面值。
8·If the $ character is not followed by a left brace, letter, or an underscore, the $ character remains unmolested in the text literal.
如果$字符后面不跟着一个左括号，字母或者一个下划线，$符号在文本字面值中就不会有麻烦。
9·Otherwise, no completion was possible, so it falls back to acting like a normal TAB key, by returning a literal TAB character.
否则其他补全将不可行，因此它通过返回一个制表符来充当正常的tab键。
10·A literal is a character, a number, or a date that is included in the SELECT statement.
原义字符是在查询语句中包含的一个字符，数字或者是时间数据。