[单选题]

有如下类定义:

class Test

{

public:

Test(){ a = 0; c = 0;} // ①

int f(int a)const{this->a = a;} // ②

static int g(){return a;} // ③

void h(int

B. . {Test::b = b;}; // ④

private:

int a;

static int b;

const int c;

};

int Test::b = 0;

在标注号码的行中,能被正确编译的是

A. . ①

B. . ②

C. . ③

D. . ④

参考答案与解析:

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