int ch ; ,R =VzP&
ch=getche() ; P[K=']c
if((ch>='a') && (ch<='z')) m^.C(}
printf("%c is a lowercase letter\n" ,ch); %p60pn[(
else if ((ch>='A') && (ch<='Z')) jf/9]`Hf
print(" %c is a uppercase letter\n" ,ch); k#) .E X
else if((ch>'0')&&(ch<'9') &zcjU+n
printf(" %c is a number character between 0 and 9\n" ,ch) ; wcf_5T
else ACYn87tq
printf("%c is...") ;alFK*K6
FO=1P7
外面再加个循环就行了