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发表于 2005-9-19 01:22:13
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<>我也发:</P>
<>tt(1000)=0; %顾客当前可租次数,初始值为随机分布<BR>finish(1000)=0; %当前已租赁,1为第一次租,2为第二次租<BR>time(1000)=0; %顾客保存周期几天,租一次为3~30天,租两次为3-15天,随机分布<BR>xuqiu(1000,8)=0; %需求矩阵<BR>zulin(1000,6)=0; %可租矩阵<BR>%转换订单矩阵为需求矩阵,xuqiu(d_i)(dingdan(d_i,d_j))值为喜好程度为d_j的dvd编号<BR>for d_i=1:1000<BR> for d_j=1:100<BR> if dingdan(d_i,d_j) > 0 & dingdan(d_i,d_j) < 9<BR> xuqiu(d_i,(dingdan(d_i,d_j))) = d_j;<BR> end<BR> end<BR>end<BR>%产生两个随机分布<BR>tt_temp=rand(1,1000);<BR>time_temp=rand(1,1000);<BR>for i=1:1000<BR> if tt_temp(i) < 0.6<BR> tt(i) = 2;<BR> else <BR> tt(i) = 1;<BR> end<BR> if tt(i) == 2 %可以用的时间<BR> time(i) = floor(time_temp(i)*12+3);<BR> else<BR> time(i) = floor(time_temp(i)*27+3);<BR> end<BR>end <BR>for i = 1:30<BR> %遍历所有已租赁顾客,是否有到保存周期,归还,如果有第二次借则再借<BR> for j=1:1000<BR> if finish(j) == 1 | finish(j) == 2<BR> time(j) = time(j) - 1; <BR> if time(j) == 0 <BR> if finish(j) == 1; %如果为第一次租,则归还后dvd数量增加,dvd(zulin(j,1)) 为现有DVD库存数量<BR> dvd(zulin(j,1)) = dvd(zulin(j,1)) + 1;<BR> dvd(zulin(j,2)) = dvd(zulin(j,2)) + 1;<BR> dvd(zulin(j,3)) = dvd(zulin(j,3)) + 1;<BR> end<BR> if finish(j) == 2; %如果为第二次租,则归还后dvd数量增加<BR> dvd(zulin(j,4)) = dvd(zulin(j,4)) + 1;<BR> dvd(zulin(j,5)) = dvd(zulin(j,5)) + 1;<BR> dvd(zulin(j,6)) = dvd(zulin(j,6)) + 1;<BR> end<BR> end<BR> end<BR> end<BR> %遍历所有顾客,如果需要租赁,则进行分发处理<BR> for k=1:1000<BR> if tt(k) ==2 %能租两次的第一次租的处理<BR> num_flag = 0;<BR> for dvdnum=1:6<BR> if dvd(xiuqiu(k,dvdnum)) > 0<BR> num_flag = num_flag + 1;<BR> end<BR> end<BR> if num_flag > 2 %能租到3张碟,则出租最靠前满意度的三张碟<BR> dvd_2zu_i=1;<BR> dvd_2zu_3=1;<BR> while dvd_2zu_3 <= 3 %决定哪三张碟<BR> if dvd(xiuqiu(k,vd_2zu_i)) > 0<BR> dvd(xiuqiu(k,vd_2zu_i)) = dvd(xiuqiu(k,vd_2zu_i)) -1;<BR> zulin(k,dvd_2zu_3) = xiuqiu(k,vd_2zu_i);<BR> dvd_2zu_3 = dvd_2zu_3 + 1;<BR> end<BR> dvd_2zu_i = dvd_2zu_i + 1;<BR> end<BR> else num_flag > 0<BR> dvd_2zu_i=1;<BR> dvd_2zu_3=1;<BR> while dvd_2zu_3 <= num_flag %决定哪一张或几张碟<BR> if dvd(xiuqiu(k,vd_2zu_i)) > 0<BR> dvd(xiuqiu(k,vd_2zu_i)) = dvd(xiuqiu(k,vd_2zu_i)) -1;<BR> zulin(k,dvd_2zu_3) = xiuqiu(k,vd_2zu_i);<BR> dvd_2zu_3 = dvd_2zu_3 + 1;<BR> end<BR> dvd_2zu_i = dvd_2zu_i + 1;<BR> end<BR> if num_flag==2<BR> zulin(k,3) = xiuqiu(k,7);<BR> else if num_flag==1<BR> zulin(k,2) = xiuqiu(k,7);<BR> zulin(k,3) = xiuqiu(k,8);<BR> end<BR> if tt(k) ==2 %能租一次的第一次租的处理<BR> num_flag = 0;<BR> for dvdnum=1:6<BR> if dvd(xiuqiu(k,dvdnum)) > 0<BR> num_flag = num_flag + 1;<BR> end<BR> end<BR> if num_flag > 2 %能租到3张碟,则出租最靠前满意度的三张碟<BR> dvd_2zu_i=1;<BR> dvd_2zu_3=1;<BR> while dvd_2zu_3 <= 3 %决定哪三张碟<BR> if dvd(xiuqiu(k,vd_2zu_i)) > 0<BR> dvd(xiuqiu(k,vd_2zu_i)) = dvd(xiuqiu(k,vd_2zu_i)) -1;<BR> zulin(k,dvd_2zu_3) = xiuqiu(k,vd_2zu_i);<BR> dvd_2zu_3 = dvd_2zu_3 + 1;<BR> end<BR> dvd_2zu_i = dvd_2zu_i + 1;<BR> end<BR> else num_flag > 0<BR> dvd_2zu_i=1;<BR> dvd_2zu_3=1;<BR> while dvd_2zu_3 <= num_flag %决定哪一张或几张碟<BR> if dvd(xiuqiu(k,vd_2zu_i)) > 0<BR> dvd(xiuqiu(k,vd_2zu_i)) = dvd(xiuqiu(k,vd_2zu_i)) -1;<BR> zulin(k,dvd_2zu_3) = xiuqiu(k,vd_2zu_i);<BR> dvd_2zu_3 = dvd_2zu_3 + 1;<BR> end<BR> dvd_2zu_i = dvd_2zu_i + 1;<BR> end<BR> if num_flag==2<BR> zulin(k,3) = xiuqiu(k,7);<BR> else if num_flag==1<BR> zulin(k,2) = xiuqiu(k,7);<BR> zulin(k,3) = xiuqiu(k,8);<BR> end<BR> end<BR> end<BR></P> |
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