摘要:
1. scope local scope, function scope, class scope, file scope, prototype scope.2. const const: read only,theconstkeyword specifies that the object or variable is not modifiable. 定义时必须初始化;const对象默认为文件的局部变量,必须显式的使用extern才能使其在其他文件中访问,(非const变量默认为extern);A pointer to a variable declared asconstcan be... 阅读全文