x=ones（252）;
x（:1）=0;
bpnet=newff（x[501]{‘logsig‘‘logsig‘}‘traingd‘）;
bpnet.trainParam.show=5;%顯示訓練迭代過程（每隔5次訓練，顯示一次訓練進程）
bpnet.trainParam.lr=0.01;%學習速率
bpnet.trainParam.epochs=2000;%最大訓練次數
bpnet.trainParam.goal=0.005;%訓練要求精度（0.005）

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-04-09?21:57??matlab手寫字識別\
?????文件?????????288??2018-03-29?11:19??matlab手寫字識別\bpgdtrain.m
?????文件???????24752??2018-04-09?21:14??matlab手寫字識別\bpnet.mat
?????文件???????84845??2018-04-09?21:13??matlab手寫字識別\IXT.txt
?????文件???????83273??2018-04-09?21:13??matlab手寫字識別\IYT.txt
?????文件????????7736??2018-03-29?11:17??matlab手寫字識別\MouseDraw.m
?????文件????????1491??2018-01-08?21:08??matlab手寫字識別\navicat.exe.lnk
?????文件?????????386??2018-03-29?11:18??matlab手寫字識別\recgnition.m