小编Shy*_*ani的帖子

Git SSH错误:"连接到主机:错误的文件号"

我按照git指南但在尝试连接到github时遇到了这个奇怪的问题:

$ ssh -v git@github.com
OpenSSH_4.6p1, OpenSSL 0.9.8e 23 Feb 2007
debug1: Reading configuration data /c/Documents and Settings/mugues/.ssh/config
debug1: Applying options for github.com
debug1: Connecting to github.com [207.97.227.239] port 22.
debug1: connect to address 207.97.227.239 port 22: Attempt to connect timed out without establishing a connection
ssh: connect to host github.com port 22: Bad file number
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这是我在.ssh下的配置文件

Host github.com
    User git
    Hostname github.com
    PreferredAuthentications publickey
    IdentityFile "C:\Documents and Settings\mugues\.ssh\id_rsa"
    TCPKeepAlive yes
    IdentitiesOnly yes
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任何的想法?

git ssh github

153
推荐指数
5
解决办法
18万
查看次数

如何将svg canvas保存到本地文件系统

有没有办法让用户在使用浏览器在javascript svg画布上创建矢量图后,将该文件下载到本地文件系统?

SVG对我来说是一个全新的领域,如果我的措辞不准确,请耐心等待.

javascript filesystems svg local save

75
推荐指数
8
解决办法
9万
查看次数

将预处理器宏添加到xcode 6中的目标

可能这很简单,但我找不到为Xcode 6中的目标定义预处理器宏的方法.

macros xcode preprocessor target

36
推荐指数
2
解决办法
6万
查看次数

C++/STL:带有给定步幅的std :: transform?

我有一个包含Nd数据的1d数组,我想用std :: transform或std :: for_each有效地遍历它.

unigned int nelems;
unsigned int stride=3;// we are going to have 3D points
float *pP;// this will keep xyzxyzxyz...
Load(pP);
std::transform(pP, pP+nelems, strMover<float>(pP, stride));//How to define the strMover??
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c++ foreach stl transform

6
推荐指数
1
解决办法
2057
查看次数

如何使用R删除Windows下的临时文件夹?

在会话之后,我想清理我的临时文件夹,例如

d <- tempfile()
dir.create(d)
setwd(d)
# now work and sweave and latex etc
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d该如何删除它的元素?file.remove失败.

r delete-file

6
推荐指数
1
解决办法
3626
查看次数

捆绑exec rake测试投掷错误

你好,我是铁路新手.我正在关注Michael Hartl的railstutorial.org.我陷入了清单4.5的第4章:当我点击$ bundle exec rake test它时显示的结果与根据教程显示的结果不同.注意:我使用Ubuntu 15.10作为平台.

我击中的结果 $ bundle exec rake test

  /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-reporters-1.0.5/lib/minitest/minitest_reporter_plugin.rb:8:in `block in plugin_minitest_reporter_init': undefined method `add_defaults' for #<Guard::Minitest::Reporter:0x005580a1496930> (NoMethodError)
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-reporters-1.0.5/lib/minitest/minitest_reporter_plugin.rb:6:in `each'
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-reporters-1.0.5/lib/minitest/minitest_reporter_plugin.rb:6:in `plugin_minitest_reporter_init'
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.8.4/lib/minitest.rb:74:in `block in init_plugins'
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.8.4/lib/minitest.rb:72:in `each'
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.8.4/lib/minitest.rb:72:in `init_plugins'
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.8.4/lib/minitest.rb:123:in `run'
  from /home/shyambhimani/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.8.4/lib/minitest.rb:56:in `block in autorun'
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application.html.erb

<!DOCTYPE html>
<html>
  <head>
    <title><%= full_title(yield(:title)) %></title>
    <%= stylesheet_link_tag    'application', media: 'all',
                                              'data-turbolinks-track' => true %>
    <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
    <%= csrf_meta_tags %>
  </head>
  <body>
    <%= …
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ruby ruby-on-rails railstutorial.org

6
推荐指数
1
解决办法
983
查看次数

Boost.MultiIndex:如何建立有效的交集?

假设我们有一个data1data2.我该如何与他们相交std::set_intersect()

struct pID
{
    int           ID;
    unsigned int  IDf;// postition in the file 
    pID(int id,const unsigned int idf):ID(id),IDf(idf){}
    bool operator<(const pID& p)const { return ID<p.ID;}
};

struct ID{};
struct IDf{};

typedef multi_index_container<
    pID,
    indexed_by<
    ordered_unique<
    tag<IDf>,  BOOST_MULTI_INDEX_MEMBER(pID,unsigned int,IDf)>,
    ordered_non_unique<
    tag<ID>,BOOST_MULTI_INDEX_MEMBER(pID,int,ID)> >
    > pID_set;

ID_set data1, data2; 
Load(data1); Load(data2);

pID_set::index<ID>::type& L1_ID_index=L1.data.get<ID>();
pID_set::index<ID>::type& L2_ID_index=L2.data.get<ID>();
    // How do I use set_intersect?
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c++ boost multi-index set-intersection

5
推荐指数
1
解决办法
588
查看次数

E:存储库“http://archive.ubuntu.com/ubuntu precision Release”未签名

我正在尝试通过运行此命令在本地设置 Scrapy docker env

docker build -t scrapy .

我遇到以下错误

获取:20 http://archive.ubuntu.com/ubuntu精确版本 [49.6 kB] 获取:21 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 软件包 [2975 B] 获取:22 http: //archive.ubuntu.com/ubuntu precision Release.gpg [198 B] Ign:22 http://archive.ubuntu.com/ubuntu precision Release.gpg 读取软件包列表...
W: GPG 错误: http:// archive.ubuntu.com/ubuntu precision Release:由于公钥不可用,无法验证以下签名:NO_PUBKEY 40976EAF437D05B5 E:存储库“ http://archive.ubuntu.com/ubuntu precision Release”未签名。命令“/bin/sh -c apt-get update”返回非零代码:100

我的 Docker 文件如下所示

############################################################
# Dockerfile for a Scrapy development environment
# Based on Ubuntu Image
############################################################

FROM ubuntu
MAINTAINER NeuralFoundry <neuralfoundry.com>

RUN echo deb http://archive.ubuntu.com/ubuntu precise universe >> /etc/apt/sources.list
RUN …
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ubuntu docker

5
推荐指数
1
解决办法
4312
查看次数

来自Scala的参数列表中带有"..."的Java函数

如上所述这里

如果要编译代码,则必须将:_*关键字添加到condition:Predicate

现在我有这个问题

val queryBuilder = em.getCriteriaBuilder()
     val cq = queryBuilder.createQuery(classOf[Product])
     val product:Root[Product] = cq.from(classOf[Product])
     val condition:Predicate = queryBuilder.equal(product.get("name"), "name")
     --> cq.where(condition:_*)


Multiple markers at this line
- type mismatch; found : javax.persistence.criteria.Predicate required: Seq[?]
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任何的想法?

java scala variadic-functions

4
推荐指数
1
解决办法
1614
查看次数

我的基于CoreLocation的Swift应用程序不会要求用户访问位置

我正在构建一个CoreLocation基于应用程序的应用程序,该应用程序根据纬度,经度,水平精度,海拔高度,垂直精度,行进距离等6个参数向用户显示其位置.

它假设要求用户允许第一次访问位置,但我也尝试重置所有模拟器的设置.

这就是我的Main.storyboard的样子

灰色部分将在稍后填充地图.

这就是我的View.Controller.swift的样子:

//  Created by 16246 on 6/7/16.
//  Copyright © 2016 16246. All rights reserved.
//

import UIKit
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {
    private let LocationManager = CLLocationManager()
    private var previousPoint:CLLocation?
    private var totalMovementDistance:CLLocationDistance = 0

    @IBOutlet var latitudeLabel: UILabel!
    @IBOutlet var longitudeLabel: UILabel!
    @IBOutlet var horizontalAccuracy: UILabel!
    @IBOutlet var altitudeLabel: UILabel!
    @IBOutlet var verticalAccuracyLabel: UILabel!
    @IBOutlet var distanceTraveledLabel: UILabel!



    override func viewDidLoad() {
        super.viewDidLoad()
        LocationManager.delegate = self
        LocationManager.desiredAccuracy …
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xcode core-location ios swift osx-elcapitan

4
推荐指数
1
解决办法
2217
查看次数