int ch ; [@K#BFA
ch=getche() ; 1=NP=ZB
if((ch>='a') && (ch<='z')) ;(0<5LQ
printf("%c is a lowercase letter\n" ,ch); ;F3#AO4(
else if ((ch>='A') && (ch<='Z')) .] gY{_|x
print(" %c is a uppercase letter\n" ,ch); En&`m
else if((ch>'0')&&(ch<'9') |, ws 3
printf(" %c is a number character between 0 and 9\n" ,ch) ; yex4A)n9"'
else R8"qDj
printf("%c is...") H!6nIS9yxt
2o5Pbdel
外面再加个循环就行了