int ch ; E%b*MU
ch=getche() ; nk*T
x
if((ch>='a') && (ch<='z')) kEYkd@{
printf("%c is a lowercase letter\n" ,ch); n8+_Uww
else if ((ch>='A') && (ch<='Z')) /;X+<Wj
print(" %c is a uppercase letter\n" ,ch); gLss2i.r
else if((ch>'0')&&(ch<'9') <"hq}B
printf(" %c is a number character between 0 and 9\n" ,ch) ; )KdEl9 o
else .)g7s? K
printf("%c is...") ?3_^SRW&a
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外面再加个循环就行了