各位大蝦，我在網(wǎng)上看到的教程里的一個程序段，本來想要試試看的： 1Qk]?R/DN  
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); UKpc3Jo:~  
net.trainParam.show = 50; x@LNjlP  
net.trainParam.lr = 0.05; 5._1G| 3  
net.trainParam.epochs = 300; X/BcS[a  
net.trainParam.goal = 1e-5; %o  
p = [-1 -1 2 2;0 5 0 5]; P _x(`H  
t = [-1 -1 1 1]; oAprM Z7Y  
net=train(net,p,t); v$)ZoM6E  
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 YAP,#a  
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 i9+qU  
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 H3>49;`  
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 S Rb-eDk'  
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 $)#?4v<  
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 @L