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¹þ¸ñ²»ÊÜÉË

½ð³æ (СÓÐÃûÆø)

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±àÁËÒ»¸ö³ÌÐòÈçÏ£¬Ï£Íûp<pjcʱʹÓÃÒ»¸öÑ­»·£¬p>=pjcʱʹÓÃÁíÒ»¸öÑ­»·¡£ÔÚ±à³Ì¹ý³ÌÖз¢ÏÖ²»¹ÜÊÇʹÓÃifÑ¡ÔñÓï¾ä»¹ÊÇwhileÑ­»·Óï¾ä¶¼ÊÇÖ»ÄÜÖ´ÐÐp<pjcʱµÄÑ­»·£¬µ±p>pjcʱ³ÌÐò¾ÍÍ£Ö¹ÁË£¬Çë¸÷λ´óÉñ°ïæ¿´Ò»ÏÂÊÇʲôԭÒò£¬Ð»Ð»´ó¼Ò¡£
clear all
p0=101.3;kp=7.9;T0=300;md0=1.3;u0=0.5;kz=4;
Tbv=2221;Tbp=1867;
V=5000;kl=1.4;kr=1.25;
pb=p0*kp;
pjc=p0+5;
t(1)=0;tj=0.001;
Vr(1)=0;
Vrj(1)=0;
p(1)=p0;
u(1)=u0;
krj(1)=0;
rr(1)=0;
mdw(1)=md0;
Tw(1)=T0;
i=1;
%¿ªÊ¼Ñ­»·¼ÆËã
while p(i)<=pb & p(i)>=p0
while p<=pjc & i<319
i=i+1;
t(i)=t(i-1)+tj;
uz(i)=u0*(p(i-1)/p0)^0.25
Vrj(i)=(4*pi/3)*(((3*Vr(i-1)/(4*pi))^(1/3)+(kz*uz(i)*tj))^3)-Vr(i-1);
krj(i)=(Vrj(i)/V)*((p(i-1)/p0)^(1/kl));
p(i)=p(i-1)+krj(i)*(pb-p0);
Vr(i)=V-(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));
Vw(i)=V-Vr(i);
rr(i)=((3*Vr(i))/(4*pi))^(1/3);
u(i)=((rr(i)-rr(i-1))/tj);
mdw(i)=md0*((p(i)/p0)^(1/kl));
Tw(i)=T0*((p(i)/p0)^((kl-1)/kl));
Tr(i)=Tbp+(Tbv-Tbp)*((p(i)-p0)/(pb-p0));
mdr(i)=(p(i)*Tbv*md0)/(pb*Tr(i));
end
while p>pjc
i=i+1;
t(i)=t(i-1)+tj;
uz(i)=u0*(p(i-1)/p0)^0.25
Vrj(i)=(4*pi/3)*(((3*Vr(i-1)/(4*pi))^(1/3)+(kz*uz(i)*tj))^3)-Vr(i-1);
krj(i)=(Vrj(i)/V)*((p(i-1)/p0)^(1/kl));
p(i)=p(i-1)+krj(i)*(pb-p0);
pb(i)=p(i)
%pb(i)=p(i-1)+krj(i)*(pb-p0);
Vr(i)=V-(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));
Vw(i)=V-Vr(i);
rr(i)=((3*Vr(i))/(4*pi))^(1/3);
u(i)=((rr(i)-rr(i-1))/tj);
mdw(i)=md0*((p(i)/p0)^(1/kl));
%Tw(i)=T0*((p(i)/p0)^((kl-1)/kl));
%Tr(i)=Tbp+(Tbv-Tbp)*((p(i)-p0)/(pb-p0));
%mdr(i)=(p(i)*Tbv*md0)/(pb*Tr(i));
Vbw(i)=(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));
Vbr(i)=V-Vbw(i);
mdbw(i)=mdw(i-1)*(Vw(i-1)-Vrj(i))/Vbw(i);
mdbr(i)=(mdr(i-1)*Vr(i-1)+mdw(i-1)*Vrj(i))/Vbr(i);
Sl=150;Sr=150;
Vxr(i)=((Sr*tj)/mdbr(i))*((2*p(i-1)*mdr(i-1)*(((p0/p(i-1))^(2/kr))-((p0/p(i-1))^((kr+1)/kr))))^(1/2));
Vxl(i)=((Sl*tj)/mdbw(i))*((2*p(i-1)*mdw(i-1)*(((p0/p(i-1))^(2/kl))-((p0/p(i-1))^((kl+1)/kl))))^(1/2));
pr(i)=pb(i)*(((Vbw(i)-(Vxl(i)))/Vbw(i))^(kl));
pl(i)=pb(i)*(((Vbr(i)-(Vxr(i)))/Vbr(i))^(kr));
p(i)=((Vbw(i)*((pr(i))^(1/kl))+((pl(i)/((pr(i)+pl(i))/2))^((kl-kr)/(kl*kr)))*Vbr(i)*((pl(i))^(1/kl)))/V)^kl;
end
end
plot(t,p)
»Ø¸´´ËÂ¥
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pdl9527

ר¼Ò¹ËÎÊ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÏÔÈ»£¬while p>pjcÊÇÎÞ·¨Ö´ÐеÄ, pÊÇÒ»¸ö1*318µÄÊý×飬ÀïÃæ²¢²»ÊÇËùÓеÄÖµ¶¼´óÓÚpjcµÄ£¬ËùÒÔ¸ÃwhileÑ­»·ÎÞ·¨Ö´ÐС£
2Â¥2016-12-16 18:13:48
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

¹þ¸ñ²»ÊÜÉË

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by pdl9527 at 2016-12-16 18:13:48
ÏÔÈ»£¬while p>pjcÊÇÎÞ·¨Ö´ÐеÄ, pÊÇÒ»¸ö1*318µÄÊý×飬ÀïÃæ²¢²»ÊÇËùÓеÄÖµ¶¼´óÓÚpjcµÄ£¬ËùÒÔ¸ÃwhileÑ­»·ÎÞ·¨Ö´ÐС£

лл»Ø¸´£¬ÎÒÏÖÔÚÖªµÀµ±p>pjcʱÊǵÚ318²½£¬½«Ñ¡ÔñÌõ¼þ¸ÄΪwhile i<=318ʱ½øÐÐÑ¡Ôñ¼ÆË㣨¾ßÌå³ÌÐòÈçÏ£©£¬µ«ÊÇÏÖʵ½á¹û³öÏÖIn an assignment  A(I) = B, the number of elements in B and  I must be the same.
Error in ==> jingque1 at 41
p(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
ʵÔÚÏë²»³öÀ´ÕâÒ»²½¾¿¾¹´íÔÚÄÄÀï°¡¡£
clear all
p0=101.3;kp=7.9;T0=300;md0=1.3;u0=0.5;kz=4;%³õʼÌõ¼þ(ѹÁ¦¡¢Ñ¹ËõϵÊý¡¢Î¶ȡ¢Ãܶȡ¢È¼ÉÕËÙ¶È¡¢ÍÄÁ÷Òò×Ó)
Tbv=2221;Tbp=1867;%ȼÉÕ²úÎïζÈ
V=5000;kl=1.4;kr=1.25;%ÎÝÊÒÌå»ý¡¢À䯸ÌåÓëÈÈÆøÌå±ÈÈÈÈݱÈ
pb=p0*kp;%±¬ºóѹÁ¦
pjc=p0+5;
t(1)=0;tj=0.001;%³õʼʱ¼äÓëʱ¼ä¼ä¸ô
Vr(1)=0;%³õʼȼÉÕ²úÎïÌå»ý
Vrj(1)=0;%µ¥Î»Ê±¼äÄÚȼÉյįøÌåÌå»ý
p(1)=p0;%³õʼѹÁ¦
u(1)=u0;%³õʼËÙ¶È
krj(1)=0;%³õʼȼ¾¡ÂÊ
rr(1)=0;%ȼÉÕ²úÎï°ë¾¶
mdw(1)=md0;%Î´È¼ÆøÌåÃܶÈ
Tw(1)=T0;%Î´È¼ÆøÌåζÈ
i=1;
%¿ªÊ¼Ñ­»·¼ÆËã
while p(i)<=pb & p(i)>=p0
while  i<318
i=i+1;
t(i)=t(i-1)+tj;
uz(i)=u0*(p(i-1)/p0)^0.25%Õý³£´«²¥ËÙ¶È--------------ÐèÒª¸Ä½ø
Vrj(i)=(4*pi/3)*(((3*Vr(i-1)/(4*pi))^(1/3)+(kz*uz(i)*tj))^3)-Vr(i-1);%µ¥Î»Ê±¼äÄÚȼÉÕµÄÌå»ý
krj(i)=(Vrj(i)/V)*((p(i-1)/p0)^(1/kl));%ȼ¾¡ÂÊ
p(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
Vr(i)=V-(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));%ȼÉÕ²úÎïÌå»ý
Vw(i)=V-Vr(i);%δȼ²úÎïÌå»ý
rr(i)=((3*Vr(i))/(4*pi))^(1/3);%ȼÉÕ²úÎï°ë¾¶
u(i)=((rr(i)-rr(i-1))/tj);%¿É¼û´«²¥ËÙ¶È
mdw(i)=md0*((p(i)/p0)^(1/kl));%Î´È¼ÆøÌåÃܶÈ
Tw(i)=T0*((p(i)/p0)^((kl-1)/kl));%Î´È¼ÆøÌåζÈ
Tr(i)=Tbp+(Tbv-Tbp)*((p(i)-p0)/(pb-p0));
mdr(i)=(p(i)*Tbv*md0)/(pb*Tr(i));%ȼÉÕ²úÎïÃܶÈ
end
while i>=318
i=i+1;
t(i)=t(i-1)+tj;
uz(i)=u0*(p(i-1)/p0)^0.25%Õý³£´«²¥ËÙ¶È--------------ÐèÒª¸Ä½ø
Vrj(i)=(4*pi/3)*(((3*Vr(i-1)/(4*pi))^(1/3)+(kz*uz(i)*tj))^3)-Vr(i-1);%µ¥Î»Ê±¼äÄÚȼÉÕµÄÌå»ý
krj(i)=(Vrj(i)/V)*((p(i-1)/p0)^(1/kl));%ȼ¾¡ÂÊ
p(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
pb(i)=p(i)
%pb(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
Vr(i)=V-(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));%ȼÉÕ²úÎïÌå»ý
Vw(i)=V-Vr(i);%δȼ²úÎïÌå»ý
rr(i)=((3*Vr(i))/(4*pi))^(1/3);%ȼÉÕ²úÎï°ë¾¶
u(i)=((rr(i)-rr(i-1))/tj);%¿É¼û´«²¥ËÙ¶È
mdw(i)=md0*((p(i)/p0)^(1/kl));%Î´È¼ÆøÌåÃܶÈ
%Tw(i)=T0*((p(i)/p0)^((kl-1)/kl));%Î´È¼ÆøÌåζÈ
%Tr(i)=Tbp+(Tbv-Tbp)*((p(i)-p0)/(pb-p0));
%mdr(i)=(p(i)*Tbv*md0)/(pb*Tr(i));%ȼÉÕ²úÎïÃܶÈ
Vbw(i)=(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));%±¬ÊÒÄÚÎ´È¼ÆøÌåÌå»ý
Vbr(i)=V-Vbw(i);%±¬ÊÒÄÚÒÑÈ¼ÆøÌåÌå»ý
mdbw(i)=mdw(i-1)*(Vw(i-1)-Vrj(i))/Vbw(i);%±¬ÊÒÄÚδ·´Ó¦ÆøÌåÃܶÈ
mdbr(i)=(mdr(i-1)*Vr(i-1)+mdw(i-1)*Vrj(i))/Vbr(i);%±¬ÊÒÄÚȼÉÕ²úÎïÃܶÈ
Sl=150;Sr=150;
Vxr(i)=((Sr*tj)/mdbr(i))*((2*p(i-1)*mdr(i-1)*(((p0/p(i-1))^(2/kr))-((p0/p(i-1))^((kr+1)/kr))))^(1/2));%й¶µÄȼÉÕ²úÎïÌå»ý
Vxl(i)=((Sl*tj)/mdbw(i))*((2*p(i-1)*mdw(i-1)*(((p0/p(i-1))^(2/kl))-((p0/p(i-1))^((kl+1)/kl))))^(1/2));%й¶µÄÎ´È¼ÆøÌåÌå»ý
pr(i)=pb(i)*(((Vbw(i)-(Vxl(i)))/Vbw(i))^(kl));%ÈÈÆøÌå¹ý³ÌѹÁ¦
pl(i)=pb(i)*(((Vbr(i)-(Vxr(i)))/Vbr(i))^(kr));%À䯸Ìå¹ý³ÌѹÁ¦
p(i)=((Vbw(i)*((pr(i))^(1/kl))+((pl(i)/((pr(i)+pl(i))/2))^((kl-kr)/(kl*kr)))*Vbr(i)*((pl(i))^(1/kl)))/V)^kl;
end
end
plot(t,p)
ÇëÎÊÕâÊÇΪʲô£¿
3Â¥2016-12-16 19:48:56
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

¹þ¸ñ²»ÊÜÉË

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
2Â¥: Originally posted by pdl9527 at 2016-12-16 18:13:48
ÏÔÈ»£¬while p>pjcÊÇÎÞ·¨Ö´ÐеÄ, pÊÇÒ»¸ö1*318µÄÊý×飬ÀïÃæ²¢²»ÊÇËùÓеÄÖµ¶¼´óÓÚpjcµÄ£¬ËùÒÔ¸ÃwhileÑ­»·ÎÞ·¨Ö´ÐС£

Èç¹û¸Ä³ÉifÓï¾ä£¬Ôò¿ÉÒÔ¼ÆË㵫ÊÇ»¹ÊÇÖ»ÄÜËãp<pjc֮ǰµÄ¹ý³Ì£¬ÇëÎÊÊÇΪʲô£¬ÏëÁ˺þö¼²»Ã÷°×¡£
p0=101.3;kp=7.9;T0=300;md0=1.3;u0=0.5;kz=4;%³õʼÌõ¼þ(ѹÁ¦¡¢Ñ¹ËõϵÊý¡¢Î¶ȡ¢Ãܶȡ¢È¼ÉÕËÙ¶È¡¢ÍÄÁ÷Òò×Ó)
Tbv=2221;Tbp=1867;%ȼÉÕ²úÎïζÈ
V=5000;kl=1.4;kr=1.25;%ÎÝÊÒÌå»ý¡¢À䯸ÌåÓëÈÈÆøÌå±ÈÈÈÈݱÈ
pb=p0*kp;%±¬ºóѹÁ¦
pjc=p0+5;
t(1)=0;tj=0.001;%³õʼʱ¼äÓëʱ¼ä¼ä¸ô
Vr(1)=0;%³õʼȼÉÕ²úÎïÌå»ý
Vrj(1)=0;%µ¥Î»Ê±¼äÄÚȼÉյįøÌåÌå»ý
p(1)=p0;%³õʼѹÁ¦
u(1)=u0;%³õʼËÙ¶È
krj(1)=0;%³õʼȼ¾¡ÂÊ
rr(1)=0;%ȼÉÕ²úÎï°ë¾¶
mdw(1)=md0;%Î´È¼ÆøÌåÃܶÈ
Tw(1)=T0;%Î´È¼ÆøÌåζÈ
i=1;
%¿ªÊ¼Ñ­»·¼ÆËã
while p(i)<=pb & p(i)>=p0
if  i<318
i=i+1;
t(i)=t(i-1)+tj;
uz(i)=u0*(p(i-1)/p0)^0.25%Õý³£´«²¥ËÙ¶È--------------ÐèÒª¸Ä½ø
Vrj(i)=(4*pi/3)*(((3*Vr(i-1)/(4*pi))^(1/3)+(kz*uz(i)*tj))^3)-Vr(i-1);%µ¥Î»Ê±¼äÄÚȼÉÕµÄÌå»ý
krj(i)=(Vrj(i)/V)*((p(i-1)/p0)^(1/kl));%ȼ¾¡ÂÊ
p(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
Vr(i)=V-(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));%ȼÉÕ²úÎïÌå»ý
Vw(i)=V-Vr(i);%δȼ²úÎïÌå»ý
rr(i)=((3*Vr(i))/(4*pi))^(1/3);%ȼÉÕ²úÎï°ë¾¶
u(i)=((rr(i)-rr(i-1))/tj);%¿É¼û´«²¥ËÙ¶È
mdw(i)=md0*((p(i)/p0)^(1/kl));%Î´È¼ÆøÌåÃܶÈ
Tw(i)=T0*((p(i)/p0)^((kl-1)/kl));%Î´È¼ÆøÌåζÈ
Tr(i)=Tbp+(Tbv-Tbp)*((p(i)-p0)/(pb-p0));
mdr(i)=(p(i)*Tbv*md0)/(pb*Tr(i));%ȼÉÕ²úÎïÃܶÈ
else
i=i+1;
t(i)=t(i-1)+tj;
uz(i)=u0*(p(i-1)/p0)^0.25%Õý³£´«²¥ËÙ¶È--------------ÐèÒª¸Ä½ø
Vrj(i)=(4*pi/3)*(((3*Vr(i-1)/(4*pi))^(1/3)+(kz*uz(i)*tj))^3)-Vr(i-1);%µ¥Î»Ê±¼äÄÚȼÉÕµÄÌå»ý
krj(i)=(Vrj(i)/V)*((p(i-1)/p0)^(1/kl));%ȼ¾¡ÂÊ
p(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
pb(i)=p(i)
%pb(i)=p(i-1)+krj(i)*(pb-p0);%ѹÁ¦
Vr(i)=V-(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));%ȼÉÕ²úÎïÌå»ý
Vw(i)=V-Vr(i);%δȼ²úÎïÌå»ý
rr(i)=((3*Vr(i))/(4*pi))^(1/3);%ȼÉÕ²úÎï°ë¾¶
u(i)=((rr(i)-rr(i-1))/tj);%¿É¼û´«²¥ËÙ¶È
mdw(i)=md0*((p(i)/p0)^(1/kl));%Î´È¼ÆøÌåÃܶÈ
%Tw(i)=T0*((p(i)/p0)^((kl-1)/kl));%Î´È¼ÆøÌåζÈ
%Tr(i)=Tbp+(Tbv-Tbp)*((p(i)-p0)/(pb-p0));
%mdr(i)=(p(i)*Tbv*md0)/(pb*Tr(i));%ȼÉÕ²úÎïÃܶÈ
Vbw(i)=(V-Vr(i-1)-Vrj(i))*((p(i-1)/p(i))^(1/kl));%±¬ÊÒÄÚÎ´È¼ÆøÌåÌå»ý
Vbr(i)=V-Vbw(i);%±¬ÊÒÄÚÒÑÈ¼ÆøÌåÌå»ý
mdbw(i)=mdw(i-1)*(Vw(i-1)-Vrj(i))/Vbw(i);%±¬ÊÒÄÚδ·´Ó¦ÆøÌåÃܶÈ
mdbr(i)=(mdr(i-1)*Vr(i-1)+mdw(i-1)*Vrj(i))/Vbr(i);%±¬ÊÒÄÚȼÉÕ²úÎïÃܶÈ
Sl=150;Sr=150;
Vxr(i)=((Sr*tj)/mdbr(i))*((2*p(i-1)*mdr(i-1)*(((p0/p(i-1))^(2/kr))-((p0/p(i-1))^((kr+1)/kr))))^(1/2));%й¶µÄȼÉÕ²úÎïÌå»ý
Vxl(i)=((Sl*tj)/mdbw(i))*((2*p(i-1)*mdw(i-1)*(((p0/p(i-1))^(2/kl))-((p0/p(i-1))^((kl+1)/kl))))^(1/2));%й¶µÄÎ´È¼ÆøÌåÌå»ý
pr(i)=pb(i)*(((Vbw(i)-(Vxl(i)))/Vbw(i))^(kl));%ÈÈÆøÌå¹ý³ÌѹÁ¦
pl(i)=pb(i)*(((Vbr(i)-(Vxr(i)))/Vbr(i))^(kr));%À䯸Ìå¹ý³ÌѹÁ¦
p(i)=((Vbw(i)*((pr(i))^(1/kl))+((pl(i)/((pr(i)+pl(i))/2))^((kl-kr)/(kl*kr)))*Vbr(i)*((pl(i))^(1/kl)))/V)^kl;
end
end
plot(t,p)
4Â¥2016-12-16 20:03:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pdl9527

ר¼Ò¹ËÎÊ (СÓÐÃûÆø)

ÒýÓûØÌû:
3Â¥: Originally posted by ¹þ¸ñ²»ÊÜÉË at 2016-12-16 19:48:56
лл»Ø¸´£¬ÎÒÏÖÔÚÖªµÀµ±p>pjcʱÊǵÚ318²½£¬½«Ñ¡ÔñÌõ¼þ¸ÄΪwhile i<=318ʱ½øÐÐÑ¡Ôñ¼ÆË㣨¾ßÌå³ÌÐòÈçÏ£©£¬µ«ÊÇÏÖʵ½á¹û³öÏÖIn an assignment  A(I) = B, the number of elements in B and  I must be the sam ...

while i>=318Ö´ÐÐÒ»´Îºó,pb±äΪһ¸ö1*319ÐеÄÊý×飬ÓÉÓÚÖ±½Ó´Ói+1=319¿ªÊ¼£¬ËùÒÔǰ1:318ÁÐΪ0¡£

ÏÔÈ»ÔÚpb(i)=p(i-1)+krj(i)*(pb-p0)ÖÐÓÉÓÚάÊý²»Í¬ÎÞ·¨¼ÆËãºÍ¸³Öµ¡£

¸Ð¾õÄã°Ñ³ÌÐòдµÄÌ«¸´ÔÓÁË£¬Ã¿Ð´Ò»¾ä³ÌÐòÒªÃ÷°×ÊÇΪÁ˸Éʲô£¬»á²úÉúʲô½á¹û¡£
5Â¥2016-12-16 21:21:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

pdl9527

ר¼Ò¹ËÎÊ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

ÒýÓûØÌû:
4Â¥: Originally posted by ¹þ¸ñ²»ÊÜÉË at 2016-12-16 20:03:25
Èç¹û¸Ä³ÉifÓï¾ä£¬Ôò¿ÉÒÔ¼ÆË㵫ÊÇ»¹ÊÇÖ»ÄÜËãp<pjc֮ǰµÄ¹ý³Ì£¬ÇëÎÊÊÇΪʲô£¬ÏëÁ˺þö¼²»Ã÷°×¡£
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