作业帮'A::A' :no appropriate default constructor available#includeclass A{protected:int a;public:A(int x){a=x;cout
来源：学生作业帮助网 编辑：作业帮 时间：2024/10/04 19:08:08
xR_kP*=bREbIX_ jt :Y7RXHԦ~عu{\.s97mfDA8A784YT%KJA*k'z*e(rҩjRNS^I'Vf)U8,4U +UMH6V:WL`ܫFN::W(ęNt{Ŝb̤CWx-\
^Cc2jlkchӌtCgN+'&*0C
`eG';Qece.4麁WC`t;s';ioGކGLd}Ild~~NH| z.Vdx`a0gqne]QC0#`[pdPX.=f{=*H=U89D>E-.nʦmQWdth>XYqS%S3KA
'A::A' :no appropriate default constructor available#includeclass A{protected:int a;public:A(int x){a=x;cout
'A::A' :no appropriate default constructor available
#include
class A
{
protected:
int a;
public:
A(int x)
{
a=x;
cout
'A::A' :no appropriate default constructor available#includeclass A{protected:int a;public:A(int x){a=x;cout
这个要改对的话只要在D的构造函数显式调用A的构造函数A(x)就可以了
D(int x):A(x),B(x),C(x)
这是一个典型的菱形继承结构
直接写
D(int x):B(x),C(x)
是有问题的,属于行为未定义,因为先调用B(x)还是C(x)在C++的标准中是没有定义的.虽然在很多编译环境中都是先B后C,但这并不可靠
effective c++中对这一结构进行了详细的剖析,感兴趣的话可以去好好看看
英语翻译Direction:Reading the following passage and translate the underlined sentences into Chinese.Media Selection for Advertisements(1)After determining the target audience for a product or service,advertising agencies must select the appropria
she is a no no.
A pink no no no中文歌词
英语翻译On rare occasions,however,the reporter can become a part of the story.Does the newspaper photographer try to stop a woman,from jumping off a bridge to her death or does he photograph the plunge?You are told by your editors,quite appropria
A.P.PDUBAIC/No.:
a no-stress vacation
a big no
no,a bit English!
c/a No.
a no ko so
YES NO N/A
a na da no
a pink 《no no no》 中文翻译（不要音译）
ou zi a qi ma,no no no 是什么意思?
NO picture you say a
A foot has no nose
a foot has no nose
No to such a long