int ch ; p3*}! ez4
ch=getche() ; .3,s4\.kT
if((ch>='a') && (ch<='z')) :<s)QD
printf("%c is a lowercase letter\n" ,ch); +EcN[-~
else if ((ch>='A') && (ch<='Z')) Od'!v &
print(" %c is a uppercase letter\n" ,ch); ]w FFGy
else if((ch>'0')&&(ch<'9') 9[|Ql
printf(" %c is a number character between 0 and 9\n" ,ch) ; Pe/cwKCI
else un[Z$moN"
printf("%c is...") #5T+P8
+"a .,-f!
外面再加个循环就行了