int ch ; U45e2~1!O
ch=getche() ; {Ea
b
j
if((ch>='a') && (ch<='z')) 7RQR)DG
printf("%c is a lowercase letter\n" ,ch); Ex.yU{|c
else if ((ch>='A') && (ch<='Z')) XMCXQs&
print(" %c is a uppercase letter\n" ,ch); SjK
else if((ch>'0')&&(ch<'9') !K#qe Y}
printf(" %c is a number character between 0 and 9\n" ,ch) ; a)!o @
else oe ~'o'
printf("%c is...") :ffY6L+
HRpte=`q
外面再加个循环就行了