int ch ; NxILRKwO
ch=getche() ; -G=]=f/'
if((ch>='a') && (ch<='z')) fV~[;e;U.
printf("%c is a lowercase letter\n" ,ch); GLODVcjf
else if ((ch>='A') && (ch<='Z')) ?q [T
print(" %c is a uppercase letter\n" ,ch); : rVnc =k
else if((ch>'0')&&(ch<'9') wuo,kM
printf(" %c is a number character between 0 and 9\n" ,ch) ; ,]D,P
else 6S{l'!s'
printf("%c is...") -Qe'YBy:
Uw:"n]G]D?
外面再加个循环就行了