半城柳色半声笛

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半城柳色半声笛 2024-11-23 21:41:58

Windows 10 下让 RStudio 一切工作的最简单方法:

打开 Internet Explorer,选择 Internet 选项

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打开环境变量编辑器:

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在表单中添加变量 HTTP_PROXY:

HTTP_PROXY=http://username:password@localhost:port/

示例:

HTTP_PROXY=http://John:JohnPassword@localhost:8080/    

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RStudio 应该可以工作:

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Simplest way to get everything working in RStudio under Windows 10:

Open up Internet Explorer, select Internet Options:

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Open editor for Environment variables:

enter image description here


Add a variable HTTP_PROXY in form:

HTTP_PROXY=http://username:password@localhost:port/

Example:

HTTP_PROXY=http://John:JohnPassword@localhost:8080/    

enter image description here


RStudio should work:

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R 的代理设置

半城柳色半声笛 2024-11-23 20:58:23

尝试:(

pax$ tm=$((time sleep 1) 2>&1 | awk '/^real/{print $2}') ; echo $tm
0m1.002s

当然,替换您自己的 a.out 命令,sleep 1 仅用于示例)。

它为 time 命令创建一个子 shell,并确保其标准错误被发送到标准输出(time 特别将其信息输出到标准 error这样它就可以与程序的正常输出分开)。

awk 命令捕获以 real 开头的行并输出第二个参数(时间)。

Try:

pax$ tm=$((time sleep 1) 2>&1 | awk '/^real/{print $2}') ; echo $tm
0m1.002s

(substituting your own a.out command of course, sleep 1 was just used for an example).

It creates a subshell for the time command and ensures that its standard error is sent to standard output instead (time specifically outputs its information to standard error so that it's kept separate from normal output of the program it's timing).

The awk command the captures the line starting real and outputs the second argument (the time).

输入“time ./a.out”的输出到一个变量

半城柳色半声笛 2024-11-23 16:19:44

根据 this,它无法将文件写入磁盘。你能检查配额/磁盘空间/等吗?

According to this, it failed to write files to disk. Can you check quota/disk space/etc.?

Http 文件上传 - 超过 25mb 的文件失败 - PHP 上传脚本

半城柳色半声笛 2024-11-23 15:16:06

你的 ABC 排序逻辑不起作用。例如,如果您传入两个 USER_TYPE_FRIEND 对象,无论它们各自的顺序如何,compareTo 将始终返回 BEFORE

您需要首先比较用户类型来实现这一点。

如果它们相等,您可以返回 row.compareTo(...) 表达式。

如果不是,您需要在之前/之后返回,仅取决于这些类型在您的逻辑中如何“比较”(即朋友<正常<禁止)。

Your ABC sort logic doesn't work. If you pass in two USER_TYPE_FRIEND objects for instance, whatever their respective order, compareTo will always return BEFORE.

You need to implement this by first comparing the usertype.

If they are equal, you can return your row.compareTo(...) expression.

If not, you need to return before/after depending only on how those types "compare" in your logic (i.e. friend < normal < banned).

Android java使用Comparable自定义排序

半城柳色半声笛 2024-11-23 12:12:08

由于 Groovy 是动态的,因此您可以从服务中删除 currentDate() 方法,并将其替换为适合您需要的方法。您可以在测试设置期间在运行时执行此操作。

在实例化 MyService 实例之前,请执行以下代码:

MyService.metaClass.currentDate << {-> new Date(1308619647140) }

这样,您就可以在所有测试中获得一致的行为。

但是,如果您愿意,可以通过具有相同技巧的闭包来覆盖实例方法。

让我知道进展如何。

文森特·吉盖尔

Since Groovy is dynamic, you could just take away your currentDate() method from your service and replace it by one that suits your need. You can do this at runtime during the setup of your test.

Prior to having an instance of MyService instantiated, have the following code executed:

MyService.metaClass.currentDate << {-> new Date(1308619647140) }

This way, you can have a consistent behavior across all your tests.

However, if you prefer, you can override the instance method by a closure that does the same trick.

Let me know how it goes.

Vincent Giguère

如何在 grails 服务中使用依赖注入有选择地设置属性以进行单元测试

半城柳色半声笛 2024-11-23 10:41:08

由于 JOIN,您只需要 DISTINCT。

因此,不要使用 JOIN:使用 EXISTS 并将所有实际上未从中 SELECT 的表推送到 EXISTS 子句中

select CL.ClientID, CL.Name 
from CL CL 
WHERE EXISTS (SELECT *
   FROM
      PR PR 
      JOIN
      TabFields TF ON PR.WBT1 = TF.WBT1
   WHERE
      PR.WBT2 = '' AND
      TF.custInclude = 'Y' and TF.WBT2 = '' AND
      CL.ClientID = PR.ClientID
      )
order by CL.Name

You only need DISTINCT because of the JOIN.

So don't use a JOIN: use EXISTS and push all tables that you don't actually SELECT from into the EXISTS clause

select CL.ClientID, CL.Name 
from CL CL 
WHERE EXISTS (SELECT *
   FROM
      PR PR 
      JOIN
      TabFields TF ON PR.WBT1 = TF.WBT1
   WHERE
      PR.WBT2 = '' AND
      TF.custInclude = 'Y' and TF.WBT2 = '' AND
      CL.ClientID = PR.ClientID
      )
order by CL.Name

SELECT DISTINCT 的替代方案

半城柳色半声笛 2024-11-23 10:09:23

this 的工作原理

实例

var Construct = function() {
  this.magic = 42;
}
var c = new Construct();
alert(c.magic === 42);

How this works

Live Example

var Construct = function() {
  this.magic = 42;
}
var c = new Construct();
alert(c.magic === 42);

“这个”是什么?在示例 JS 函数中?

半城柳色半声笛 2024-11-23 09:18:34

另一种选择:

from operator import itemgetter
from itertools import groupby

a = [ (1,2,3), (3,4,5), (5,4,2)]
b = groupby(sorted(a), itemgetter(1))
for val, group in b:
    print val, list(group)
# 2 [(1, 2, 3)]
# 4 [(3, 4, 5), (5, 4, 2)]

Another alternative:

from operator import itemgetter
from itertools import groupby

a = [ (1,2,3), (3,4,5), (5,4,2)]
b = groupby(sorted(a), itemgetter(1))
for val, group in b:
    print val, list(group)
# 2 [(1, 2, 3)]
# 4 [(3, 4, 5), (5, 4, 2)]

在 python 中搜索嵌套列表

半城柳色半声笛 2024-11-23 09:08:48

该列表包含 2 个单独的字典。直接迭代列表。

That list contains 2 separate dicts. Iterate over the list directly.

Python Json 解析

半城柳色半声笛 2024-11-23 08:42:16

我不会。

我的公司每月发送数百万封电子邮件,而电子邮件附件是我们面临的最大问题。最重要的是,您附加了一些内容,并且大大增加了被阻止或标记为垃圾邮件的机会。

改为发送链接。在链接中使用唯一的哈希标识符,用户可以单击该标识符来启动下载。它可以让电子邮件变得更小、更容易发送垃圾邮件、更轻松地编码以及让客户更满意。

I wouldn't.

My company sends millions of emails monthly and email attachments are the biggest single problem that we have. Bottom line, you attach things and you raise the chances of being blocked or flagged for spam by a significant factor.

Send a link instead. Use a unique hash identifier in the link that the person can click to initiate a download. It makes for a smaller email, more spam friendly delivery, easier coding for you, and happier customers.

如何以网络表单上传文件并通过电子邮件发送?

半城柳色半声笛 2024-11-23 08:32:08

从我的角度来看,三星 GALAXY Tab 10.1 是最好的。

from my point of view samsung GALAXY Tab 10.1 is best .

Android - 在平板电脑上进行测试。哪种平板电脑最适合测试?

半城柳色半声笛 2024-11-23 08:03:33

是的,可以,但早期版本的 CouchDB for Android 不支持 CommonJS。这个问题现在可能已经解决了,我已经几个月没有测试了。

因此,如果您的 map/reduce/list/show 函数使用 CommonJS 模块,那么这些函数在由 Android 版 CouchDB 执行时将会崩溃。

如果出现任何问题,请检查 Android 设备上的 CouchDB 日志文件。

更新

Android 版 CouchDB 的版本已于昨天更新,现在应该支持 CommonJS 模块。

Yes you can, but the earlier versions of CouchDB for Android do not support CommonJS. This may have been fixed by now, I haven't tested it in a few months.

So, if your map/reduce/list/show functions use CommonJS modules, those functions will crash when executed by CouchDB for Android.

If anything does go wrong, check the log file for CouchDB on your Android device.

UPDATE

The version of CouchDB for Android was updated yesterday and it should now support CommonJS modules.

我可以在 Android 上的 CouchBase 和 Linux 上运行的 Couch DB 之间进行复制吗?

半城柳色半声笛 2024-11-23 04:15:39

XPT是xpcom接口定义;自 Firefox 3.6 起,xpcom 插件不再在 Firefox 中运行。有关详细信息,请参阅 http:// /colonelpanic.net/2010/01/firefox-3-6-has-removed-support-for-xpcom-plugins/

XPI 文件是一个扩展,但它可能包含 npapi 插件作为扩展的一部分。如果我们假设您实际上没有使用 xpt 并且您的插件在 Firefox 3.6 中工作,那么您遇到的问题很可能是 Firefox 4 不再默认解压 XPI,并且插件无法使用它需要。请参阅https://developer.mozilla.org/En/Updating_extensions_for_Firefox_4.0#XPI_unpacking

但是,我更喜欢像 Dpp 建议的那样使用注册表进行安装。这就是 FireBreath 使用的方法。请参阅 https://developer.mozilla.org/en/Gecko_Plugin_API_Reference/Plug-有关此方法的文档,请参见_Development_Overview#Installing_Plug-ins

XPT is the xpcom interface defintion; xpcom plugins no longer work in Firefox as of Firefox 3.6. For more information, see http://colonelpanic.net/2010/01/firefox-3-6-has-removed-support-for-xpcom-plugins/

A XPI file is an extension, but it may contain a npapi plugin as part of the extension. If we go with the assumption that you aren't actually using that xpt and your plugin worked in Firefox 3.6, most likely the issue you're having is that Firefox 4 no longer unpacks the XPI by default, and for a plugin to work it needs to. See https://developer.mozilla.org/En/Updating_extensions_for_Firefox_4.0#XPI_unpacking

However, I much prefer installing using the registry like Dpp suggested. That is the method that FireBreath uses. See https://developer.mozilla.org/en/Gecko_Plugin_API_Reference/Plug-in_Development_Overview#Installing_Plug-ins for documentation on this method.

Firefox 4 上的 NPAPI 插件安装问题 .. 被识别为扩展

半城柳色半声笛 2024-11-23 02:20:04

几点建议:

  • 检查受executeUpdate()影响的行数
  • 您的事务策略是什么?定义了任何 TransactionManager 吗?

Few suggestions:

  • Check the number of rows affected by executeUpdate()
  • What is your Transaction policy? Any TransactionManager defined?

表有时不会通过 Hibernate 本机查询进行更新

半城柳色半声笛 2024-11-23 00:23:57

是的,至少从 Android 2.3.3 开始支持。但它非常不精确。 查看第二个示例

Yes, are supported, at least from Android 2.3.3. But it is heavily imprecise. Check the second example.

Android 手势、单笔划和多次冲程产生不一致的结果

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