int ch ; P:Bg()
ch=getche() ; f>Ge
Em~
if((ch>='a') && (ch<='z')) + 505
printf("%c is a lowercase letter\n" ,ch); G-Y8<mEh
else if ((ch>='A') && (ch<='Z')) ^JH 4:
h
print(" %c is a uppercase letter\n" ,ch); rx%lL
else if((ch>'0')&&(ch<'9') +] FdgmK:
printf(" %c is a number character between 0 and 9\n" ,ch) ; N^O.P
else NL1Ajms`
printf("%c is...") ]":PO4M$*
,Q^.SHP8
外面再加个循环就行了