x = 0;y = 0;
a = 0.2;
b = 0.3;
尽管〜(x == 1 && y == 1)
c = rand;
d =兰特;
m = [a c;B D];
d = normc(m);
X = D(1,1)+ D(2,1)
Y = D(1,2)+ D(2,2)
结尾