int ch ; \[wbJ
ch=getche() ; n6C!5zq7U
if((ch>='a') && (ch<='z')) 9aKO||i,
printf("%c is a lowercase letter\n" ,ch); /2$d'e
else if ((ch>='A') && (ch<='Z')) =L{-Hu/j
print(" %c is a uppercase letter\n" ,ch); ?&VKZSo
else if((ch>'0')&&(ch<'9') 9N6 \Ou~
printf(" %c is a number character between 0 and 9\n" ,ch) ; LFvZ 7M\\
else 9)4_@rf%
printf("%c is...") +IlQZwm~
-<(RYMk*)
外面再加个循环就行了