????һֱ??ϰ?߾?????վ?????Գ?Ч???????????ǹ???Ҳ?Ǻܽ??????㣬???磬Բ??????ֶԳ??Ե?ͼ?Ρ??Գ??????ź?г????ʵ??????????վ??????ȫ???Բ??÷ǶԳ????ֲ?Ѱ????????˼·????ʵ???ԳƵ???վ???ƺ?????????վ?????????????ְ?????ť???ؼ?????????Ԫ?ء????ò??Գ?????ģʽͨ???Աȡ????Ͳ??ֺ??????û????º?????ӡ???????????Ƴ????ԳƵ????ƣ?????վ???û???????ӱ?????????ڷ?????վ??????˵˵???????Ʋ??ԳƵ???վ????Ч????
1??ͨ???Ӿ??????û????????û???˵??Խ????ͨ??Ч??Խ???????????û?ע?⡣?෴???û?ϲ?????Ӿ??????ܴ???Ч????????????????վ??˵ͨ?????Ƴ???ť?ͱ??????????????ĶԱȡ????????û?????????վ?????б????ͺ????ĶԱ?Ӫ?????????Ӿ????????Ӷ??????û???????????ȥ??
2??????ָ???û?????վ?????ܶ??˶???Ϊƴ?þ??ǹ?˾????????ʵԶԶû????ô?????վ??ƴ?ľ?????վ???Ƶ???ֵ??һ????վ????ҳ?????ú??ַ???????û???˵Ӱ???ܴ?????վ??????????Ҫע??ϸ?ڻ??????罫??վ????Ϊ??ͬ???飬?ٲ?ͬ??ʽ???Ӳ?ͬ?????ݣ??????Ǹ??????鱣?ֶ?????״̬???Ƽ??Ķ?:??ƽ????վ???????γ??ֳ???ѧ????
3??????ʽ???֣?ʹ???˷ǶԳ?ʽ?????ף????ݺ?ͼƬ???ҽ???ʽ?IJ??֣?ͨ?????ƺ????????࣬???Ժ??????????û????Ķ???ϰ?߸С?????????????Ϣ???????ԣ????û???Ϥ???ַǶԳƵķ?ʽ?????û???Ϊ???Ķ????????ƿ??ߡ?