int ch ; &$=! dA
ch=getche() ; H=p`T+
if((ch>='a') && (ch<='z')) -R0/o7
printf("%c is a lowercase letter\n" ,ch); zT[6eZ8m
else if ((ch>='A') && (ch<='Z')) w^HjZV
print(" %c is a uppercase letter\n" ,ch); X`:'i?(yj
else if((ch>'0')&&(ch<'9') <^8*<;PaG
printf(" %c is a number character between 0 and 9\n" ,ch) ; 4r&f%caU
else KxIyc7.
printf("%c is...") Y.sz|u 1
~}'F887 f
外面再加个循环就行了