小编Flo*_*oyd的帖子

我正在研究C#4.0/WPF实时频谱分析仪(作为另一个项目的基础).我使用NAudio last版本在声卡上获得实时音频输出,使用WPFSoundVisualizationLib(http://wpfsvl.codeplex.com/)进行频谱分析仪WPF控制.有了这个神奇的工具,工作几乎完成,但它不能正常工作:-(

我有一个功能谱,但信息不是权利,我不明白问题的来源......(我将我的Spectrum与Equalify进行比较,Spotify的频谱/均衡器,我没有相同的行为)

这是我的主要课程:

using System;
using System.Windows;
using WPFSoundVisualizationLib;

namespace MySpectrumAnalyser
{
    public partial class MainWindow : Window
    {
        private RealTimePlayback _playback;
        private bool _record;

        public MainWindow()
        {
            InitializeComponent();
            this.Topmost = true;
            this.Closing += MainWindow_Closing;
            this.spectrum.FFTComplexity = FFTDataSize.FFT2048;
            this.spectrum.RefreshInterval = 60;
        }

        private void MainWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            if (this._record)
            {
                this._playback.Stop();
            }
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            if (this._playback == null)
            {
                this._playback = new RealTimePlayback();
                this.spectrum.RegisterSoundPlayer(this._playback);
            }

            if (!this._record)
            {
                this._playback.Start();
                this.Dispatcher.Invoke(new Action(delegate …

TFS 2015 Update 2带来了Git LFS支持,但是当我尝试将它与Brian Keller VS2015ALM虚拟机(升级到Update 2)一起使用时,我遇到了以下异常:

git-lfs/1.2.0 (GitHub; windows amd64; go 1.6.1; git 386c5d8)
git version 2.8.1.windows.1

$ git-lfs.exe smudge -- Image1.jpg
Error downloading object: Image1.jpg (968bda1e0a17e295e265311f93bc4e631e171
d776d51c6d7a43b52185c82631a)

Your user name must be of the form DOMAIN\user. It is currently brian%!(EXTRA st
ring=string)
goroutine 1 [running]:
github.com/github/git-lfs/lfs.Stack(0x0, 0x0, 0x0)
        C:/Users/techn/go/src/github.com/github/git-lfs/lfs/errors.go:566 +0x87
github.com/github/git-lfs/commands.logPanicToWriter(0x1a42c0, 0xc082020020, 0x1b
54a0, 0xc0823ae1a0)
        C:/Users/techn/go/src/github.com/github/git-lfs/commands/commands.go:195
 +0xf87
github.com/github/git-lfs/commands.logPanic(0x1b54a0, 0xc0823ae1a0, 0x0, 0x0)
        C:/Users/techn/go/src/github.com/github/git-lfs/commands/commands.go:159
 +0x419
github.com/github/git-lfs/commands.handlePanic(0x1b54a0, 0xc0823ae1a0, 0x0, 0x0)

        C:/Users/techn/go/src/github.com/github/git-lfs/commands/commands.go:134
 +0x55
github.com/github/git-lfs/commands.LoggedError(0x1b54a0, 0xc0823ae1a0, 0xa25980,
 0x21, 0xc082029c88, 0x2, 0x2)
        C:/Users/techn/go/src/github.com/github/git-lfs/commands/commands.go:84 …

从这个“test.json”文件：

{
  "key1": "abc",
  "key2": "def",
  "key3": "ghi"
}

我可以使用以下命令更新“key2”值：

jq '.key2="123"' test.json

但是，有没有办法使用不区分大小写的密钥过滤器并使此命令有效：

jq '.KeY2="123"' test.json

而且...如果在 JSON 文件中找不到密钥，则什么也不做。默认行为是附加搜索到的键。