#include
#include
usingnamespacestd;
intmain()
{
charch1;
intnum;
cout<<"Pleaseinputachar:";
cin>>ch1;
if((((int)ch1)<33)||(((int)ch1)>126))
{
cout<<"Inputwrong,Pleaseinputacharagain:";
cin>>ch1;
}
cout<<"Pleaseinputanumber:";
cin>>num;
if(num<1||num>30)
{
cout<<"Inputwrong,Pleaseinputanumberagain:";
cin>>num;
}
for(intm=0;m
{
for(inti=0;i
cout<<"";
for(intj=0;j<2m+1;j++)
cout<
cout<
}
getch();
return0;
}
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