int ch ; jVL<7@_*
ch=getche() ; meu\jg
if((ch>='a') && (ch<='z')) "RuJlp
printf("%c is a lowercase letter\n" ,ch); ][S<M24]Q
else if ((ch>='A') && (ch<='Z')) LgRx\*[C*
print(" %c is a uppercase letter\n" ,ch); "5%G[MB
else if((ch>'0')&&(ch<'9') ^ $Q',
printf(" %c is a number character between 0 and 9\n" ,ch) ; <F+S }!q
else 6@g2v^ %
printf("%c is...") %d($\R-*O
|;'V":yDs
外面再加个循环就行了