int ch ; v
]Sl<%ry
ch=getche() ; ChryJRuwv5
if((ch>='a') && (ch<='z')) hlZ@Dq%f
printf("%c is a lowercase letter\n" ,ch); |xr%6 [Ff
else if ((ch>='A') && (ch<='Z')) n@C~ev@%S
print(" %c is a uppercase letter\n" ,ch); W)j|rz.
else if((ch>'0')&&(ch<'9') ?eV(1Fr@
printf(" %c is a number character between 0 and 9\n" ,ch) ; .V9e=yW!*
else zboF
1v`
printf("%c is...") fJ*:{48
hw_JDv+
外面再加个循环就行了