C语言标识符和变量名的区别
C语言中变量名和标识符有什么区别?
The identifier is only used to identify an entity uniquely in a program at the time of execution whereas, a variable is a name given to a memory location, that is used to hold a value. Variable is only a kind of identifier, other kinds of identifiers are function names, class names, structure names, etc.
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