int ch ; RM53B
ch=getche() ; |dNtM ^
if((ch>='a') && (ch<='z')) >Uvtsj#
printf("%c is a lowercase letter\n" ,ch); x_Ki5~w5
else if ((ch>='A') && (ch<='Z')) :=04_5 z
print(" %c is a uppercase letter\n" ,ch); 8eP2B281
else if((ch>'0')&&(ch<'9') "fLGXbNQ
printf(" %c is a number character between 0 and 9\n" ,ch) ; [d!C6FT
else @18@[ :d"
printf("%c is...") O?@1</r^
{xt<`_R
外面再加个循环就行了