回复：（萧萧落）@for(count(j):@for(month(i):@sum(m...
<P><FONT face=宋体>@for(count(j):@for(month(i): @sum(month(i):x(i)-y(i)) );这条语句你要干什么，求完和@sum(month(i):x(i)-y(i))后也没有与别的表达式产生联系。再者说，你的这条语句也有错。</FONT></P>
<P><FONT face=宋体>可能我太笨，实在没能理解。请你好好描述一下你的意思，这样我才好作答。</FONT></P> <P>我语言不行，怎么说版主不行了，我再改一下如下：</P><P>@for(count(j):x(1,j)-y(1,j)>0);
@for(count(j):x(1,j)-y(1,j)<1000);
@for(count(j):x(1,j)+x(2,j)-y(1,j)-y(2,j)>0 );
@for(count(j):x(1,j)+x(2,j)-y(1,j)-y(2,j)<1000 );
@for(count(j):x(1,j)+x(2,j)+x(3,j)-y(1,j)-y(2,j)-y(3,j)>0);
@for(count(j):x(1,j)+x(2,j)+x(3,j)-y(1,j)-y(2,j)-y(3,j)<1000);
@for(count(j):x(1,j)+x(2,j)+x(3,j)+x(4,j)-y(1,j)-y(2,j)-y(3,j)-y(4,j)>0);
@for(count(j):x(1,j)+x(2,j)+x(3,j)+x(4,j)-y(1,j)-y(2,j)-y(3,j)-y(4,j)<1000);
@for(count(j):x(1,j)+x(2,j)+x(3,j)+x(4,j)+x(5,j)-y(1,j)-y(2,j)-y(3,j)-y(4,j)-y(5,j)>0);
@for(count(j):x(1,j)+x(2,j)+x(3,j)+x(4,j)+x(5,j)-y(1,j)-y(2,j)-y(3,j)-y(4,j)-y(5,j)<1000);
@for(count(j):x(1,j)+x(2,j)+x(3,j)+x(4,j)+x(5,j)+x(6,j)-y(1,j)-y(2,j)-y(3,j)-y(4,j)-y(5,j)-y(6,j)>0 );
@for(count(j):x(1,j)+x(2,j)+x(3,j)+x(4,j)+x(5,j)+x(6,j)-y(1,j)-y(2,j)-y(3,j)-y(4,j)-y(5,j)-y(6,j)<1000 );</P><P>就是这个意思怎样用个循环表达了！</P> <P>版主，你的书太及时了．不过怎么没法下啊，我是在上午９点多钟点击，无法连接服务器，是怎么回事啊？</P> <P>版主，你的书太及时了．不过怎么没法下啊，我是在上午９点多钟点击，无法连接服务器，是怎么回事啊？</P> <P>感谢啊</P> <P>我想把教程下载可以吗</P><P>该怎样做呢</P> 看不了啊！ <P>高手帮我看一下，程序怎么出错了，错误报告为：在牛顿迭代中出现了不可知的错误，谢谢啊！</P>
<P>问题的背影是对18个成员在最大收益下进行组队的问题，要求组六个队，每队6人。</P>
<P>model:</P>
<P>!init:</P>
<P>endinit;
sets:
mumbers/1..18/;
pairs(mumbers,mumbers,mumbers)|&1#lt#&2#and#&2#lt#&3:level,binx;
endsets
max=@sum(pairs(i,j,k):level(i,j,k)*binx(i,j,k)); ！目标；
<a href="mailt!@for(mumbers(i" target="_blank" >!@for(mumbers(i</A>):
@sum(pairs(l,m,n)|l#eq#i#or#m#eq#i#or#k#eq#i:binx(l,m,n))=1); 以下为约束
@sum(pairs(l,m,n)|l#eq#1:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#2#or#m#eq#2:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#3#or#m#eq#3#or#n#eq#3:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#4#or#m#eq#4#or#n#eq#4:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#5#or#m#eq#5#or#n#eq#5:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#6#or#m#eq#6#or#n#eq#6:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#7#or#m#eq#7#or#n#eq#7:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#8#or#m#eq#8#or#n#eq#8:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#9#or#m#eq#9#or#n#eq#9:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#10#or#m#eq#10#or#n#eq#10:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#11#or#m#eq#11#or#n#eq#11:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#12#or#m#eq#12#or#n#eq#12:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#13#or#m#eq#13#or#n#eq#13:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#14#or#m#eq#14#or#n#eq#14:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#15#or#m#eq#15#or#n#eq#15:binx(l,m,n))=1;
@sum(pairs(l,m,n)|l#eq#16#or#m#eq#16#or#n#eq#16:binx(l,m,n))=1;
@sum(pairs(l,m,n)|m#eq#17#or#n#eq#17:binx(l,m,n))=1;
@sum(pairs(l,m,n)|n#eq#18:binx(l,m,n))=1;
@for(pairs:@bin(binx));
data:
level=
512.6400499.9667492.6867514.1167509.7600494.1600497.6400521.2800504.5733485.1933499.7000504.3133501.9600501.8533515.6433498.3067516.8800507.6000531.0800526.9433506.3500512.7733525.9800519.6500500.0800516.7067518.5133512.2300513.0933532.8000515.1200488.4433501.2700504.5733493.7333493.5000518.7733501.2000483.8267497.3700501.0200500.4000500.3400503.7400490.2900497.6767481.2800467.0400462.9333487.8600477.2333455.5833470.5800475.0667487.6000495.8300505.8000466.5833517.8267507.7333506.6600532.0267506.8000498.6000508.6100515.1200514.3000513.3600514.1167502.2933484.5000485.9867511.5300503.5000474.7000487.1533493.6400493.3633504.5733512.6400474.7000471.6667499.7000488.9400460.5533478.4600483.9300491.0400500.2667509.3067473.5267495.5533485.8167460.1333476.1733481.6500492.6867501.0200510.9867471.3333507.3000486.9200497.6400496.5100506.5700515.9333539.5200496.3200477.2333491.6200495.2500499.4100507.7333518.7733488.3533467.7900473.2000480.2400489.3667499.2433463.8333479.9600490.0000498.3067513.9500472.4400491.7500501.0200521.4733477.8667491.1333511.3600479.3200513.1733492.1367502.0533517.7500511.2867532.9500527.8000508.1267515.5200529.7333523.3800502.7967517.5567519.3600513.0933513.9500533.6867516.0033496.6933508.6667512.0500496.4333498.0800525.3500508.6100487.4267501.0200504.6833504.0600503.0667508.3600500.4000505.0333508.4567492.9000492.6867513.1733495.6900483.9200493.7333497.3700500.4467499.4733514.1800493.1200525.3500514.2300514.1167534.8500
513.2933505.0333512.3000517.8900517.0800516.1333521.6133509.6667500.5000509.7600537.4667520.5200497.1367509.9033515.5200503.6267507.3000511.5300502.7967494.1600521.4733504.7800481.7400497.1367500.7867496.5333498.3067506.3500496.6200521.2800504.5733485.1933496.8500500.5000501.9600500.9100515.6433496.4333522.4267512.2300522.3400522.2400522.5600522.5000543.3200521.6633495.6900505.6267508.3600512.4000511.4200526.3000504.9900488.1333491.7500489.3667489.2800502.9000487.6000501.6000502.0533501.0200515.7533495.6000504.7800503.7400521.3833502.0533493.8300509.4000495.8300513.0933496.6933508.5400513.3600525.4700531.9600512.3000517.8267531.9600525.4600506.8500519.7767521.6133517.0667517.0400528.2000518.0100521.7300525.4000504.9333507.6000517.8267510.5333498.6000510.4833511.3600510.5933510.5700531.0967509.6800542.4467527.3400531.0800541.4933530.1600521.7300529.2100532.0267527.3333527.3433538.6500526.3800522.3400529.8333544.1700537.6467516.8800528.9600532.7233518.7000521.4733537.4667520.6667509.2000523.2967516.9467496.5333512.1467513.9500507.6733508.5400528.1467510.5333525.9800519.6500502.9000515.7533517.5567515.0600514.9867535.6800514.1800527.1233516.8800528.9600528.8700529.1500529.1000550.0333528.2400510.5333522.5600522.5000522.6600522.6400543.4000521.7333506.7367508.5400502.2533503.1300522.6067505.0633517.6600514.1800514.1167534.7767513.2933517.8900517.8267538.5600517.0000506.8000524.4533506.8867527.2500508.7100526.3800491.3733503.1300489.5000
487.5200513.3600492.2500480.5333493.1200497.6767500.5000499.5933499.4733487.7867509.5467499.5233499.4100526.4067501.3700493.2000503.1800509.6400508.7500507.8400505.8667495.9400501.0200501.7333534.8200517.0000493.8300507.5133511.2000503.0667503.9267500.6500494.7600488.1333523.5800503.1800480.3333498.4800501.2000500.4800499.5233497.3700493.1667521.6133501.2000480.1333496.4333499.1400500.4000499.4100498.0800491.2133522.6400512.4300520.7200519.7200519.8667519.8500533.9000518.9400492.2500504.9900508.6667512.4400511.5267513.2933501.4167487.6000490.2900489.5800488.6333490.2067484.1600500.1800500.4467499.4733505.7200493.1200499.4733499.4100510.3433498.6000490.4167502.2000492.3100503.0667494.1133493.9133507.7800497.7500496.7533522.6600497.7500489.6000499.5600505.9867505.0500504.1600504.1067492.3200482.5333480.3400506.4667494.6667473.6700483.3200489.7400494.8400504.9900510.3433471.8233466.1133491.8667480.2400459.5500472.7467477.2333489.5467497.7500506.8500467.7400487.8600477.2333455.5833470.5800475.0667487.6000495.8300504.8633465.6667498.4000479.2100491.7500491.6200501.3267510.5700531.0967491.2133468.6500482.9033486.5000490.4600498.6667509.6400479.5700462.1467466.5833478.7667486.8800497.7200459.0000475.2300485.8333494.0400507.7333468.5400488.5200496.7533514.2300474.8333491.4000509.6800479.6700510.5933489.6000495.8800511.3600515.9333543.4000517.9400509.6400519.7767526.3467521.7333522.6600515.8500507.7800505.8667532.9800507.8133499.5833509.6400
516.1333515.2000514.2967511.4200502.3333532.0267506.8000498.6000508.6100515.1200514.3000513.3600512.2300501.3700528.2800522.6600530.1533532.0267528.2667528.2800539.6000527.3100497.7500507.7800513.3333513.3600512.4500514.2300502.3333499.5600505.9867505.0500504.1600505.9600494.1333513.2933512.4500511.5200516.0600504.1600515.2267514.2900522.6067510.6033508.7500518.0100505.9600518.9333506.9000504.1067478.8000516.6000505.6267470.4000488.4800493.0500488.9400502.9000495.7333476.9333514.4200503.5000471.8800486.2000490.7700492.4200503.6267506.8800474.7000525.2100505.5200510.7200511.5300513.9500525.2867545.2000502.6800494.6667504.5733510.1500506.7367517.0000524.3333494.6667477.7000482.2200480.9400491.9700498.0800468.1300490.0133494.4400504.6833516.6000476.7633494.3067504.5733521.2800483.1600491.8667506.4667486.5000512.0500496.6200504.6833499.7000488.9400448.5067466.2400478.2700487.3200496.5333503.6267470.7467510.3433490.9333501.7333501.6000511.4200520.7600541.4933501.2000480.2400493.7333497.3700501.3700509.6667520.7600490.3600457.9733469.8200475.8467484.9167494.7600464.1000481.2800491.1333499.4100513.1733474.5933491.9700500.2667517.8267481.8667489.4400504.0000484.9800508.6100495.0000501.2700507.3000486.9200499.5467499.3800509.4000518.7733539.5200499.1400477.2333491.6200495.2500499.4100507.7333518.7733488.3533455.7000467.6000477.4800485.6733496.4333462.0000479.0133489.0667497.3700511.1000472.4400489.8767498.2000515.7533479.7333490.2067507.6000
483.0000509.4000493.0600499.2433498.4000510.2533510.1500510.4833519.8200540.5400509.6000490.8133490.6800500.4000509.6400530.1533490.2900497.6400505.7200515.0600537.6467495.4967506.5700515.9333539.5200496.3200510.5333532.0267498.5467533.9000509.6400530.1533482.9033486.5000490.4600498.6667509.6400479.5700495.3800497.6200505.9200519.7767489.3667499.4100507.7333525.4000494.8400503.2400521.7333491.3733522.6600501.4167509.6400470.5800480.3333488.5200502.1333463.9733481.1600489.3667506.7367471.1667478.6600495.8300474.2500497.6200484.1600492.2000489.0667497.3700516.8000476.1600491.2133511.4200480.3333512.3000490.3600503.0667491.1333512.3000482.0800513.1733493.0600510.4833500.3400484.1200504.1400505.0333;
enddata
end</P> <P>六楼的朋友，请把问题背影告诉我，发到我邮箱里也可以</P><P>canghaiyiyue@msn.com</P>