题目内容
（请给出正确答案）
[主观题]
下列程序时类D代码段出现编译错误，原因是【 】。 include＜iostream. h＞ class A { public:A（char c)
下列程序时类D代码段出现编译错误，原因是【 】。
include＜iostream. h＞
class A
{
public:
A(char c){cout＜＜"A's constructor."＜＜c＜＜endl;}
～A(){cout＜＜"A's destructor."＜＜endl;}
};
class B: virtual public A
{
public:
B(char cb,char cd):A(cb) {cout＜＜"B's constructor."＜＜cd＜＜endl;}
～B(){cout＜＜"B's destructor."＜＜endl;}
private:
char b;
};
class C:virtual public A
{
public:
C(char cc, char cd):A(cc)
{cout＜＜"C's constructor. "＜＜cd＜＜endl;}
～C(){cout＜＜"C's destructor."＜＜endl;}
};
class D:public B,public C
{
public:
D(char cd,char ce,char cf, char cg, char ch,char ci)
:C(cf,cg),B(cd,ce),A(cd),aa(ch)
{cout＜＜"D's constructor."＜＜ci＜＜endl;}
～D() {cout＜＜"D's destructor."＜＜endl;}
private:
A aa;
};
void main()
{
D ohj('a','b','c','d','e','f')
}
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