int ch ; 6>B \|
ch=getche() ; 'NjSu64W
if((ch>='a') && (ch<='z'))
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printf("%c is a lowercase letter\n" ,ch); 0yQe5i}
else if ((ch>='A') && (ch<='Z')) 8=4^Lm
print(" %c is a uppercase letter\n" ,ch); fM:80bnL+
else if((ch>'0')&&(ch<'9') ETelbj;0
printf(" %c is a number character between 0 and 9\n" ,ch) ; ^5x4 q
else n\>.T[$"
printf("%c is...") V9{B}5KC
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外面再加个循环就行了