int ch ; }{iR+MX
ch=getche() ; _
esFx
if((ch>='a') && (ch<='z')) a Mv
printf("%c is a lowercase letter\n" ,ch); 'd(}bYr)
else if ((ch>='A') && (ch<='Z')) cB -XmX/
print(" %c is a uppercase letter\n" ,ch); -.^Mt.)
else if((ch>'0')&&(ch<'9') %NeKDE
printf(" %c is a number character between 0 and 9\n" ,ch) ; !Toq~,a8?
else Fi7pq2
printf("%c is...") ,{'~J @
K\?vTgc(
外面再加个循环就行了