function [ opts ] = PrepareData_Char_RNN( opts )
max_char=67;
x = textread('train_x.txt');%20570*65
x(:,end)=[];%去掉第二维最后一组,x变为20570*64
opts.train = zeros(max_char, size(x,1),size(x,2));%创建一个0矩阵,维数为67*20570*64
Index=x(:)'+1+max_char*[(0:numel(x)-1)];%将x变为列向量 再共轭专治,此时成为一个行向量1*1316480;
%numel(x)读出矩阵x中元素个数
%(0:numel(x)-1)产生一个行向量 0到1316479, 0:3-1输出结果为0 1 2
opts.train(Index)=1;%1-K 编码
x = textread('train_y.txt');
opts.train_labels=x+1;
opts.n_train=size(opts.train_labels,1);
x = textread('test_x.txt');
x(:,end)=[];
opts.test = zeros(max_char, size(x ,1),size(x ,2));
Index=x (:)'+1+max_char*[(0:numel(x )-1)];
opts.test(Index)=1;
x = textread('test_y.txt');
opts.test_labels=x+1;
opts.n_test=size(opts.test_labels,1);