function [d,r1]=floyd1(vx,vy)
b=inf;
a=[ 0 2 8 1 b b b b
2 0 6 b 1 b b b
8 6 0 7 5 1 2 b
1 b 7 0 b b 9 b
b 1 5 b 0 3 b 8
b b 1 b 3 0 4 6
b b 2 9 b 4 0 3
b b b b 8 6 3 0 ];
d=a;
vx=vx+1;
vy=vy+1;
global r;
r=a;
for i=1:8
for j=1:8
d(i,j)=a(i,j);
r(i,j)=j;
k=1;
end
end
for k=1:8
for i=1:8
for j=1:8
if d(i,k)+d(k,j)<d(i,j)
d(i,j)=d(i,k)+d(k,j);
r(i,j)=k;
end
end
end
end
r1=r-1;
fun3(vx,vy);
诸位谁能帮忙解释一下这个程序，错的修改到他可以运行
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