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function generateData() { var data = []; for (var i = 0; i <= 20; i++) { for (var j = 0; j <= 20; j++) { for (var k = 0; k <= 20; k++) { data.push([i, 阅读全文
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<html> <head> <meta charset="utf-8"> <title>JS 变换数据</title> </head> <body> <script> var A = [1, 2,3,1]; var B = [4, 5, 6,7]; function generateData() { 阅读全文
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１、取数据库最后３０个数据 select x,y from sin order by id desc limit 0,30; 2、将数据再反序,横坐标反转 select * from (select x,y from sin order by id desc limit 0,30) as sinxy 阅读全文
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在使用set_xticklabels时，报错 UserWarning: FixedFormatter should only be used together with FixedLocator 究其原因，原来set_xticks()和set_xticklabels()需要同时使用，缺一不可 阅读全文
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1. 连接数据库2. 授权并刷新权限grant all privileges on *.* to 'root'@'%' identified by 'password' with grant option;flush privileges;3. 查看用户数据 use mysqlselect user 阅读全文
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1. 合并,提取音视频 (1)单独提取视频（不含音频流） ffmpeg -i video.mp4 -vcodec copy -an video_silent.mp4 -an：表示不输出音频 (2)单独提取音频（不含视频流） ffmpeg -i input.mp4 -vn -ar 44100 -ac 阅读全文
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1. Debian 上安装 sudo apt-get install gerbera 2. 打开UI界面 默认是关闭的，配置文件/etc/gerbera/config.xml，把enabled改为'yes' <config> <server> <ui enabled="no" show-toolti 阅读全文
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batch_size , seq ,num_layers = 2,3,2 input_size , hidden_size = 2,3 input = torch.randn(batch_size, seq, input_size) h_0 = torch.zeros(num_layers,batc 阅读全文
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rnn = nn.RNN(input_size=4,hidden_size=3,num_layers=2,batch_first=True, bidirectional = True) input = torch.randn(1,5,4) output , h_n = rnn(input) prin 阅读全文
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batch_first – If True, then the input and output tensors are provided as (batch, seq, feature) instead of (seq, batch, feature). Note that this does n 阅读全文