那这样嵌套用呢?
int F_choice;
char E_choice;
int i;
switch(F_choice)
{
case 11:
switch(E_choice)
{ case 33: i = 1133; break;
case 44: i = 1144; break;
default:condition_report(start_error);break;
}break;
case 22:
switch(E_choice)
{ case 33: i = 2233 ;break;
case 44: i = 2244;break;
default:break;
}break;
default:;break;
那这样嵌套用呢?
int F_choice;
char E_choice;
int i;
switch(F_choice)
{
case 11:
switch(E_choice)
{ case 33: i = 1133; break;
case 44: i = 1144; break;
default:;break;
}break;
case 22:
switch(E_choice)
{ case 33: i = 2233 ;break;
case 44: i = 2244;break;
default:break;
}break;
default:;break;