int ch ; c@9jc^CJ
ch=getche() ; , ,1H#;j
if((ch>='a') && (ch<='z')) )D\cm7WX^[
printf("%c is a lowercase letter\n" ,ch); x/D"a|
else if ((ch>='A') && (ch<='Z')) dYEF,\Z'
print(" %c is a uppercase letter\n" ,ch); <Y~?G:v6+
else if((ch>'0')&&(ch<'9') 4a3Xz,[(a
printf(" %c is a number character between 0 and 9\n" ,ch) ; v,t;!u,40
else &2IrST{d:V
printf("%c is...") E*V UP5E
8m,PsUp7
外面再加个循环就行了