双引号字符的字符串字面呈现后的第一次。
Double quotes after the first character in the string are rendered literally.
如果该值同时包含分号和双引号字符，则该值可以用单引号括起来。
If the value contains both a semicolon and a double-quote character, the value can be enclosed in single quotes.
这意味着，在单引号字符串，单引号字符必须逃，在双引号字符串，双引号字符必须逃跑。
This means, inside single quoted strings, the single quote character has to be escaped, and inside double quoted strings, the double quote character has to be escaped.
如果该值同时包含单引号和双引号字符，则用于将值括起来的引号字符每次出现时，都必须成对出现。
If the value contains both single-quote and double-quote characters, the quote character used to enclose the value must be doubled each time it occurs within the value.
如果使用了两个特殊字符中的任何一个，则必须将名称包括在双引号中。
If either of these two special characters are used, the names must be enclosed in double quotes.
如果还包含其它的字符，那么这段字符必须用双引号引起来。
If it contains other characters, it must be enclosed in double quotation marks.
主要必须使用各种转义字符，如双引号用\ “表示。”
Note that various escape characters must be used such as \ "for double quotes."
在该字符串中，您可以使用任意多的单引号和双引号(参见清单4)。
Within in the string, you can use as many single and double quotation marks as you like (see Listing 4).
第一，在创建字符串时，您可以混合使用单引号和双引号，只要字符串在开始位置和结束位置使用同一类型的引号。
First, you can mix single and double quotation marks when creating a string, as long as the string USES the same type of quotation mark at the beginning and end.
这里，第一个字符串使用一对单引号定义，第二个字符串使用一对双引号定义。
Here, the first string is defined with a pair of single quotes. The second one USES a pair of double quotes.
双引号本身并不是字符串的一部分，仅仅表示开始和结尾。
The quotation marks are not part of the string but serve only to mark its beginning and end.
标点和符号集是用来替换其他字符的，即使搜索词汇是包含在双引号中，或者标点符号被转义了，如清单25所示。
The set of punctuation and symbols substitute for other members of the set, even if the search term is enclosed in double quotes, or the punctuation is escaped, as shown in Listing 25.
双引号中的值始终是字符串，而不带引号的数字值被认为是数字。
A value in double quotes is always a string, but a numeric value without quotes is interpreted as a number.
通过把名称放在双引号中，可以避开这些规则，使用双引号允许名称区分大小写以及包含附加字符（包括空格）。
You can escape these rules by placing the name in double quotation marks, which allows names to be case sensitive and to include additional characters (including spaces).
有一些额外的规则可以让你书写包含特殊字符（例如双引号）的字符串。
There are several additional rules for writing string constants that allow you to include special characters (such as quotation marks) within the string.
如果在基于字符串的查询谓词周围使用双引号，而不是单引号，就会收到语法错误。
If you use double quotes around your string-based query predicate, instead of pairs of single quotes, you'll get a syntax error.
如果可能，确保您的格式不会接受sql语法中的任何有语法含意的字符(例如双引号和分号)。
If possible, make sure your format doesn't accept any characters that have syntactic meaning in SQL (such as double-quote and semicolon).
另外一点值得注意的是字符串是通过单引号或双引号被编码的。
It's worth noting that strings are encoded using single or double quotation marks.
根据句法，在uri字符串前后使用引号(单引号或双引号)，并用冒号将前缀分隔开；对其它字符没有任何规定。
Syntactically, you use quotes (single or double) around the URI string, and a colon to set off the prefix; other characters present no interference.
使用单引号、双引号和三引号语法创建的字符串仍然是字符串对象。
The strings I've been creating using the single, double, or triple quotation mark syntax are still string objects.
字符串字段需要双引号。
在处理字符串数据时，可以使用双引号或单引号分隔。
When working with string data, you can use either double quotation marks or single quotation marks to delimit them.
由于空格字符被用来分隔集合中的元素，因此icecream元素(这里没有使用icecream)需要在名字两边使用双引号括起来。
Because the space character separates the elements of a set, the ice cream element needs double quotes around the name (instead of the less attractive icecream, for example).
如果我们希望在MathProg名字中使用非ascii字符，那么即使名字中间没有空格，也应该使用双引号将它们括起来。
If you want to use non-ASCII characters in MathProg names, you should use double quotes as well even if there are no Spaces.
但是使用双引号允许在分隔的字符串内部对Velocity引用、指示符甚至Velocimacros求值。
However, the use of double quotation marks allows evaluation of Velocity references, directives, or even Velocimacros inside the delimited string.
虽然双引号隐式地把数据类型定义为字符串，但是以上方法显式地把concat 2函数的输入和输出类型定义为字符串。
Though the double quotes implicitly types data as strings, the above method explicitly types both the input and output to the concat2 function as strings.
Erlang不直接支持字符串的概念，但是可以使用带双引号的值创建字符串值(参见清单18)。
Erlang does not support the idea of a string directly, although you can use a double quoted value to create a string value (see Listing 18).
如果您喜欢编写动态的方法，可能想把名称空间放在带双引号的字符串中：“denoncourt \retail \controller ”。
If you like to code dynamic methods, you may be tempted to place a namespace in a double-quoted string: "denoncourt \ retail \ controller".
当DELIMIDENT没有设置为YES 时，双引号中的字符串被当作字符串字面值。
When DELIMIDENT is not YES, strings in double-quotes are treated as string literals. To set DELIMIDENT
当DELIMIDENT设置为YES时，将双引号中的字符串识别为SQL标识符。
DELIMIDENT, when set to YES, identifies strings in double-quotes as SQL identifiers.
应用推荐