有如下类和对象的定义: class Constants{ public: static double get PI(){return 3.
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有如下类和对象的定义: class Constants{ public: static double get PI(){return 3.1416;} }; Constants constants; 下列各组语句中,能输出3.1416的是
A.cout<<constants->getPI();和cout<<Constants::getPI();
B.cout<<constants. getPI();和cout<<Constants.getPI();
C.cout<<constants->getPI();和cout<<Constants->getPl();
D.cout<<constants. getPI();和cout<<Constants::getPI();
参考答案: