题目内容

The same variable name cannot be declared and used in more than one function.

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While a function is executing, only the storage area for the variables and parameters created by this function are accessed.

The scoping rules for symbolic constants and function prototypes are the same as those for variables.

The scope of a variable can be thought of as the space within the program where the variable is valid.

Initialization within an extern declaration statement is not allowed and causes a compilation error.