int ch ; =fnBE`Uc
ch=getche() ; *<67h*|)
if((ch>='a') && (ch<='z')) =M*pym]QSY
printf("%c is a lowercase letter\n" ,ch); uHZ4
@w:
else if ((ch>='A') && (ch<='Z')) >K,QP<B
print(" %c is a uppercase letter\n" ,ch); 'SlZ-SdR
else if((ch>'0')&&(ch<'9') d|Wqx7t]P
printf(" %c is a number character between 0 and 9\n" ,ch) ; 0?/gEr
else h0k?(O
printf("%c is...") V?G%-+^
T"za|Fo
外面再加个循环就行了