题目内容
(请给出正确答案)
[判断题]
VPDN(Virtual Private Dial Network)是指利用公共网络(如PON、ADSL)的拨号功能及接入网来实
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程序改错
class mml
{
private:
static unsigned int x;
public:
mml(){ x++; }
mml(static unsigned int &) {x++;}
~mml{x--;}
pulic:
virtual mon() {} = 0;
static unsigned int mmc(){return x;}
......
};
class nnl:public mml
{
private:
static unsigned int y;
public:
nnl(){ x++; }
nnl(static unsigned int &) {x++;}
~nnl{x--;}
public:
virtual mon() {};
static unsigned int nnc(){return y;}
......
};
代码片断:
mml* pp = new nnl;
..........
delete pp;
struct S1
{
char c;
int i;
};
sizeof(S1) = ?
class X{
public:
X();
virtual ~X();
void myMemberFunc();
39
static void myStaticFunc();
virtual void myVirtualFunc();
private:
int i;
char * pstr;
char a;
}
sizeof(X) = ?