求解决，急~写谢了

return可以么，怎么用？return-2？

尼玛度娘吞了

用循环语句啊

http://hi.baidu.com/zlptq/item/eb35c61e96830df865eabf2a 这种行不

duff's device?

goto 可否？goto case 0?

while语句 ，for语句。

switch (count % 8 ){
case 0 :
do {
* to ++ = * from ++ ;
case 7 :
* to ++ = * from ++ ;
case 6 :
* to ++ = * from ++ ;
case 5 :
* to ++ = * from ++ ;
case 4 :
* to ++ = * from ++ ;
case 3 :
* to ++ = * from ++ ;
case 2 :
* to ++ = * from ++ ;
case 1 :
* to ++ = * from ++ ;
} while ( -- n > 0 );
}
////////////////////////////////////////////
这串代码 和
do {
switch (count % 8 ){
case 0 : * to ++ = * from ++ ;
case 7 : * to ++ = * from ++ ;
case 6 : * to ++ = * from ++ ;
case 5 : * to ++ = * from ++ ;
case 4 : * to ++ = * from ++ ;
case 3 : * to ++ = * from ++ ;
case 2 : * to ++ = * from ++ ;
case 1 : * to ++ = * from ++ ;
}
} while ( -- n > 0 );
有什么区别吗
何必写得这么难看

用while(1)把整个switch语句和判断条件语句用大括号括起

do {
switch (count % 8 ){
case 0 : * to ++ = * from ++ ;
case 7 : * to ++ = * from ++ ;
case 6 : * to ++ = * from ++ ;
case 5 : * to ++ = * from ++ ;
case 4 : * to ++ = * from ++ ;
case 3 : * to ++ = * from ++ ;
case 2 : * to ++ = * from ++ ;
case 1 : * to ++ = * from ++ ;
}
count = 0;
} while ( -- n > 0 );

goto语句和 do while都可实现~摸摸索索的就会了

。。。捉鸡啊。。。