字符串字面值，比如a、b、c等等。
可以使用+操作符连接多个字符串字面值。
To concatenate multiple String literals, use the + operator.
String数据类型代表字符串字面值。
本章介绍了存储字符串字面值的字符数组。
This chapter introduced the use of character arrays to hold string literals.
解释字符串字面值就是双引号之间的字符序列。
Interpreted string literals are character sequences between double quotes .
字符串字面值无法隐式地转换为int型，因而该调用是错误的。
A string literal cannot be implicitly converted to an int, so the call is an error.
原始字符串字面值表示的值就是由反引号之间的字符组成的字符串。
The value of a raw string literal is the string composed of the uninterpreted characters between the quotes;
第一个函数调用传递了一个字符串字面值，但是函数的形参却是int型的。
The first call passes a string literal but the function parameter is an int.
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
字符串字面值表示由字符序列构成的字符串常量。有两种格式：原始字符串字面值和解释字符串字面值。
A string literal represents a string constant obtained from concatenating a sequence of characters. There are two forms: raw string literals and interpreted string literals.
Eclipse基金会也正致力于提供JDK 7支持，在switch语句中使用字符串、二元字面值、数字字面值中的下划线、Unicode 6.0以及SafeVarargs注解支持已经实现了。
The Eclipse foundation too is working on support, with switch on strings, binary literals and underscores in number literals, Unicode 6.0, and SafeVarargs annotation already complete.
字面值字符用单引号括住，而字面值字符串则用双引号括住。
The value cannot be changed. Literal characters are enclosed in single quotes, literal strings in double quotes.
字面值字符用单引号括住，而字面值字符串则用双引号括住。
The value cannot be changed. Literal characters are enclosed in single quotes, literal strings in double quotes.
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