function?AF
clc;clear?all;?close?all;

format?long
Visual?=?2.5;
Step?=?0.3;
N?=?50;
Try_number?=?50;
a1?=?-10;?b1?=?10;?a2?=?-10;?b2?=?10;?d?=?[];?h?=?1e-1;
Friend_number?=?50;?k?=?0;?m?=?50;
X1?=?rand（N1）*（b1-a1）+a1;
X2?=?rand（N1）*（b2-a2）+a2;
X?=?[X1?X2];?%?人工魚數量
for?i?=?1:N
????www?=?[X（i1）X（i2）];
????d（i）?=?maxf（www）;
end
[wi]?=?max（d）;
maxX?=?[X（i1）X（i2）];?%?初始公告板記錄
maxY?=?w;?%?初始化公告板記錄
figurex?=?[];?figurey?=?[];?figurez?=?[];
figurex（numel（figurex）+1）?=?maxX（1）;
figurey（numel（figurey）+1）?=?maxX（2）;
figurez（numel（figurez）+1）?=?maxY;
kkk?=?0;

while（k????for?i?=?1:N
????????XX?=?[X（i1）X（i2）];?%?人工魚當前狀態Xi
????????nf?=?0;
????????Xc?=?0;
????????for?j?=?1:N?%?聚群行為開始
????????????XXX?=?[X（j1）?X（j2）];
????????????if?（norm（XXX-XX）????????????????nf?=?nf+1;
????????????????Xc??=?Xc+XXX;
????????????end
????????end
????????Xc?=?Xc/nf;
????????if（maxf（Xc）?>?maxf（XX））
????????????XXnext1?=?XX+rand*Step*（Xc-XX）/norm（Xc-XX）;
????????????if（XXnext1（1）?>?b1）
????????????????XXnext1（1）?=?b1;
????????????end
????????????if（XXnext1（1）?????????????????XXnext1（1）?=?a1;
????????????end
????????????if（XXnext1（2）?>?b2）
????????????????XXnext1（2）?=?b2;
????????????end
????????????if（XXnext1（2）?????????????????XXnext1（2）?=?a2;
????????????end
????????else
????????????XXnext1?=?gmjprey（XXTry_numberVisualStep）;
????????????if（XXnext1（1）?>?b1）
????????????????XXnext1（1）?=?b1;
????????????end
????????????if（XXnext1（1）?????????????????XXnext1（1）?=?a1;
????????????end
????????????if（XXnext1（2）?>?b2）
????????????????XXnext1（2）?=?b2;
????????????end
????????????if（XXnext1（2）?????????????????XXnext1（2）?=?a2;
????????????end
????????end?%?聚群行為結束
????????
????????%?maxX?=?XX;?%?追尾行為開始
????????%?maxY?=?maxf（XX）;
????????for?j?=?1:Friend_number
????????????XXX?=?[X（j1）X（j2）];
????????????if（norm（XXX-XX）