字符常量 meaning in English

character constant

Is valid , but the character constant
是有效的，但是字符常量
Character constants are not allowed
不允许使用字符常量。
A character constant written in the same format as in c . for example , is a character token
:字符常量的写法与c相同。例如, - -就是一个字符标记。
The translator can translate character constants to a set of code values different from the set for the target environment
编译器可以将字符常量转换成一组与那组由目标环境产生的不同的值。
Expressions must have integral type and can include only integer constants , character constants , and the defined operator
表达式必须有整数类型并且只能包括整数常量，字符常量，以及定义了的运算符。