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  • 2.whereis和find相比,whereis查找的速度非常快,这是因为linux系统会将系统内的所有文件都记录在一个数据库文件中,当使用whereis和下面即将介绍的locate时,会从数据库中查找数据,而不是像find命令那样,通过遍历...

    2.whereis

    和find相比,whereis查找的速度非常快,这是因为linux系统会将 系统内的所有文件都记录在一个数据库文件中,当使用whereis和下面即将介绍的locate时,会从数据库中查找数据,而不是像find命令那样,通 过遍历硬盘来查找,效率自然会很高。

    但是该数据库文件并不是实时更新,默认情况下时一星期更新一次,因此,我们在用whereis和locate 查找文件时,有时会找到已经被删除的数据,或者刚刚建立文件,却无法查找到,原因就是因为数据库文件没有被更新。

    2.1.命令格式:

    whereis [-bmsu] [BMS 目录名 -f ] 文件名

    2.2.命令功能:

    whereis命令是定位可执行文件、源代码文件、帮助文件在文件系统中的位置。这些文件的属性应属于原始代码,二进制文件,或是帮助文件。whereis 程序还具有搜索源代码、指定备用搜索路径和搜索不寻常项的能力。

    2.3.命令参数:

    -b   定位可执行文件。

    -m   定位帮助文件。

    -s   定位源代码文件。

    -u   搜索默认路径下除可执行文件、源代码文件、帮助文件以外的其它文件。

    -B   指定搜索可执行文件的路径。

    -M   指定搜索帮助文件的路径。

    -S   指定搜索源代码文件的路径。

    2.4.使用实例:

    实例1:将和**文件相关的文件都查找出来

    [finance@master2-dev ~]$ whereis java

    java: /usr/bin/java /etc/java /usr/lib/java /usr/share/java /usr/share/man/man1/java.1.gz

    [finance@master2-dev ~]$ whereis svn

    svn: /usr/bin/svn /usr/share/man/man1/svn.1.gz

    [finance@master2-dev ~]$ whereis tomcat

    tomcat:

    tomcat没安装,找不出来,svn安装找出了很多相关文件

    实例2:只将二进制文件 查找出来

    [finance@master2-dev ~]$ whereis -b svn

    svn: /usr/bin/svn

    [finance@master2-dev ~]$ whereis -m svn

    svn: /usr/share/man/man1/svn.1.gz

    [finance@master2-dev ~]$ whereis -s svn

    svn:

    whereis -m svn 查出说明文档路径,whereis -s svn 找source源文件。

    展开全文
  • DataGrid是什么意思

    2021-04-13 00:03:52
    - add visual component, specific content is as follows: Executive navigation container embeds image embeds font founds the layout that is based on a tie to apply a style to combine Adobe CS3 to make ...

    1. I have used DataGrid which is a very useful control to represent data in tabular form.

    我已经使用DataGrid中这是一个非常有用的控制,代表以表格形式的数据。

    2. You need to call in the middle of the deployment of a JAVA object in the method and the results displayed in a DataGrid in

    你需要调用部署在中间层的一个JAVA对象中的方法并把结果显示在一个DataGrid中?

    3. There are scenarios when we have to populate fields from a child window to a parent window after selecting a particular row from a DataGrid.

    在许多情况下当我们能够从一个子窗口的原野,从DataGrid中选择一个特定的行父窗口。

    4. Here we are going to briefly understand the server side and client approaches for Export to Excel and then we will focus on the VBScript that can be used to Export DataGrid data into Excel.

    在这里我们将简要地了解服务器端和客户端方式出口到Excel,然后我们将把重点放在可用于导出DataGrid的数据到Excel的VBScript。

    5. Bear in mind that only one table can be shown in the DataGrid at a time.

    请记住,只有一张桌子可以在DataGrid中显示一次。

    6. If you use DataGrids on web pages that receive a lot of hits, and they only dissplay information and are not to edit data, then high speed, small size might be what you need.

    如果您使用DataGrid控件的网页上接收大量的命中,他们只显示信息,并非编辑数据,那么高速,体积小,可能是您所需要的。

    7. The cell merging of DataGrid can be applied in this scenario.

    DataGrid的单元格的合并可以适用于这种情况。

    8. When you have a complex control, like DataGrid, writing an event processing routine for each object (cell, button, row, etc.) is quite tedious.

    当你有一个复杂的控制,如DataGrid中,写一个事件处理每个对象,日常是相当乏味。

    9. The part that has completed at present is as follows: The first day -- Flex foundation, inclusive content has: The data that Flex of understanding of space of work of Flex Builder Flex Builder of understanding of Flex, Flash, Flash Player, AIR overview compiles package to understand MXML component beforehand binds incident of calm processing user to understand incident object to use ActionScript to add incident dictograph to use HttpService to get data the following day -- package is developed, this part includes following video: The MXML component that shows in DataGrid the use of layout container founds data to be defined oneself realizes Value Object kind found found from definition incident define incident oneself kind define project apply colours to a drawing oneself implement the use that explores Flex Bulider is small doohickey the 3rd day -- work in coordination, include: Data test and verify uses long-range object to transmit data format to change data to accuse from list medium procrastinate put data to use E4X to filter XML deploy Flex and AIR application the 4th day -- add visual component, specific content is as follows: Executive navigation container embeds image embeds font founds the layout that is based on a tie to apply a style to combine Adobe CS3 to make package skin found view status animation for MXML component: Skin of component of implementation of behavior and encode of graph of scale of API of plot of union of specially good effect is patulous package the 5th day -- the exercise of behavior form a complete set of timer of Flash of understanding of advanced development skill and code of give typical examples can come the page of Flex In A Week of Adobe government downloads.

    目前已经完成的部分如下:第一天——Flex基础,包括的内容有:Flex、Flash、Flash Player、AIR概述了解Flex Builder Flex Builder工作空间了解Flex预编译组件了解MXML 组件的数据绑定处理用户事件了解事件对象使用ActionScript添加事件侦听器使用HttpService获取数据第二天——组件开发,该部分包括如下视频:在DataGrid中显示数据布局容器的使用创建自定义的MXML组件实现Value Object类创建自定义事件创建自定义事件类自定义项目渲染器探索Flex Bulider的使用小窍门第三天——协同工作,包括:数据验证使用远程对象来传输数据格式化数据从列表控件中拖放数据使用E4X来过滤XML 部署Flex和AIR应用第四天——添加视觉组件,具体内容如下:执行导航容器嵌入图像嵌入字体创建基于约束的布局为MXML组件应用样式结合Adobe CS3制作组件皮肤创建视图状态动画:行为和特效结合绘图API绘制图形编码实现组件皮肤扩展组件第五天——高级开发技巧了解Flash定时器的行为配套练习及示例代码可至Adobe官方的Flex in a Week页面下载。

    10. My intension is to show how we will use different data types and their formatting in DataGrid.

    我的内涵是展示我们将如何使用不同的数据类型及其在DataGrid中的格式。

    11. If your DataGrid has only one column, you need to try one of the alternative approaches

    如果你的DataGrid中只有一列,您需要尝试的途径之一

    12. Here, I will use the DataGrid, and the TextBox to view our record.

    在这里,我将使用DataGrid和TextBox的查看我们的记录。

    13. I came with the idea of developing this simple contrrol because I was developing an application where in one form I had to display data contained in a DataSet and didn't want to use a DataGrid for this purpose.

    我想出了发展这个简单的管理理念,因为我正在开发一个应用程序,其中以不同的形式展示我不得不在DataSet中的数据,不希望为此目的使用一个DataGrid。

    14. This is not the case assigned DataGrid, you will monitor and how to use this incident?

    这不是DataGrid分派的事件,那么你将如何监听并使用这个事件呢?

    15. The JavaScript will sort the DataGrid on the first click on the column header ASC and on second DESC.

    JavaScript将排序的列标题上的第一次点击DataGrid的ASC和第二次实价。

    16. In order to reorder columns, drag a column header and drop it somewhere else in the DataGrid.

    为了重新排序列,列标题拖到拖放到别处DataGrid中。

    17. One workaround is to use the DataGrid's MouseUp event to switch to another cell in the same row.

    一个解决办法是使用DataGrid的MouseUp事件切换到另一个在同一行的单元格。

    18. If you click a node in the DataGrid, it displays the child table.

    如果您单击DataGrid中一个节点,它显示子表。

    19. We'll show you how to write the JSON file to generate the layout for the example above, but first we'll describe how the grid handler actually generates the Dojo DataGrid widget.

    我们将演示如何编写生成上例布局信息的JSON文件,但我们将首先描述网格处理程序如何实际生成DojoDataGrid小部件。

    20. There are, of course, different ways to populate the data in the DataGrid.

    当然有,不同的方式来填充DataGrid中的数据。

    展开全文
  • row是什么意思

    千次阅读 2021-05-26 03:27:59
    横列:讲到这个,横列(row)直行(column)才对,可是一堆人都把「列」讲成了「行」(按下Enter加入一「行」...),虽然很多人都知道讲述者的意思,但如果身为教育工作者也这麼讲,这不是助长积非成是,众口铄金之风了吗?...

    row 相关例句

    不及物动词

    1. They rowed across the lake.

    他们划船过湖。

    名词

    1. What about going for a row?

    一起去划船好吗?

    2. Stop making such a row!

    别吵了!

    3. The teacher told the children to stand in a row.

    老师叫孩子们站成一排。

    row 网络解释

    1. 列:Offset(n, 2).表示指定范围往下位移n 列且往右位移 2 行,所以我想你是把行(Column) 列(Row) 给弄反了.

    2. 排:高雄港务局表示该工程完成后,可提供码头承租航商将现有挂吊16排(ROW) 货柜起重机,更新为大型挂吊22排(ROW)之货柜起重机,将可增进码头作业效率、减少大型货柜船舶滞港时间、降低航商作业成本、确保码头作业安全、提升港埠营运竞

    3. row的反义词

    3. 横列:讲到这个,横列(row)直行(column)才对,可是一堆人都把「列」讲成了「行」(按下Enter加入一「行」...),虽然很多人都知道讲述者的意思,但如果身为教育工作者也这麼讲,这不是助长积非成是,众口铄金之风了吗?

    4. row:rising of water level; 水位上升

    5. row:rest of the world; 欧洲及其余地区

    6. row:right of way; 路权

    7. row:rest of world; 世界其他地区

    row 词典解释

    排列;序列(ARRANGEMENT OR SEQUENCE)

    1. 一排;一行;一列

    A row of things or people is a number of them arranged in a line.

    e.g....a row of pretty little cottages...

    一排漂亮的小村舍

    e.g.Several men are pushing school desks and chairs into neat rows.

    几个人正挪动学校的桌椅,将它们排整齐。

    2. (电影院或飞机里的)一排座位

    In a theatre or cinema, or on a plane, each line of seats is called a row .

    danci.911cha.com

    e.g.She was sitting in the front row.

    她坐在前排。

    3. (用于街道名称)…街,…路

    Row is sometimes used in the names of streets.

    e.g....the house at 236 Larch Row.

    拉奇街236号的房子

    4. see also: death row;skid row

    5. 连续地;接连不断地;不间断地

    If something happens several times in a row, it happens that number of times without a break. If something happens several days in a row, it happens on each of those days.

    e.g.They have won five championships in a row...

    他们已经5次蝉联冠军。

    e.g.If I'm inside for three days in a row, I go crazy...

    如果连续3天不出来,我会发疯的。

    6. a hard row to hoe -> see hoe

    使船移动(MAKING A BOAT MOVE)

    1. 划船;划船运送

    When you row, you sit in a boat and make it move through the water by using oars. If you row someone somewhere, you take them there in a boat, using oars.

    e.g.He rowed as quickly as he could to the shore...

    他尽快地把船划到岸边。

    e.g.We could all row a boat and swim almost before we could walk...

    我们所有人几乎在还不会走之前就已经会划船和游泳了。

    分歧;喧闹(DISAGREEMENT OR NOISE)

    1. 严重分歧;纠纷

    A row is a serious disagreement between people or organizations.

    e.g.This is likely to provoke a further row about the bank's role in the affair...

    这有可能会加深关于银行在此事中的作用的分歧。

    e.g.The ministers must have realized that they risked what could be a major diplomatic row with France.

    部长们应该已经认识到了他们这样做可能会与法国产生严重的外交纠纷。

    2. 争吵;争执;争论

    If two people have a row, they have a noisy argument.

    e.g.We never seem to stay together for very long before we have a dreadful row...

    我们总是在一起呆不了多久就会大吵一架。

    e.g.A man had been stabbed to death in a family row.

    一位男子在一场家庭纠纷中被刺死。

    3. 争吵;争执;争论

    If two people row or if one person rows with another, they have a noisy argument.

    e.g.They rowed all the time...

    他们总是争吵不休。

    e.g.He had earlier rowed with his girlfriend.

    他早先和女友吵过架。

    4. 叫嚷;吵闹;喧嚣

    If you say that someone is making a row, you mean that they are making a loud, unpleasant noise.

    e.g.'Whatever is that row?' she demanded. 'Pop festival,' he answered.

    “那闹哄哄的究竟是在做什么?”她问道。“是流行音乐节,”他回答说。

    row 英英释义

    noun

    1. the act of rowing as a sport

    Synonym: rowing

    2. (construction) a layer of masonry

    e.g.a course of bricks

    Synonym: course

    3. a continuous chronological succession without an interruption

    e.g.they won the championship three years in a row

    4. an angry dispute

    e.g.they had a quarrel

    they had words

    5. an arrangement of objects or people side by side in a line

    e.g.a row of chairs

    6. a linear array of numbers, letters, or symbols side by side

    7. a long continuous strip (usually running horizontally)

    e.g.a mackerel sky filled with rows of clouds

    rows of barbed wire protected the trenches

    verb

    1. propel with oars

    e.g.row the boat across the lake

    展开全文
  • DNN是什么意思

    千次阅读 2020-12-24 04:57:57
    DNN是什么意思 3. DNN in the website of the simple personal information module source code, very practical value. 在DNN下的网站上的简单的个人消息模块源码,很有实用价值。 4. The spatial distribution ...

    1. In chapter 3, we first discuss the completely positive matrix and give a sufficient and neessary condition of whence a double nonnegative matrix is a completely positive matrix, i. e., For A = 6 DNNn and suppose that A = T^T where T is a real kxn matrix and k = rank.

    第三章首先对完全正矩阵进行了讨论,得到双非负矩阵是完全正矩阵的一个充要条件,即:设A=a_(ij∈DNN_n,如果A=T~TT,那么A∈CP_n当且仅当存在m个非零向量x_1,…,x_m∈S_T~*使得下式成立:x_1x_1~T x_2x_2~T … x_mx_m~T=I_k,其中,T是k×nk=rank

    2. The three-dimensional conformation of HNTX-I in aqueous solution was determined using two-dimensional'H NMR techniques. The complete sequence-specific assignments of proton resonance in the'H-NMR spectra of HNTX-1 were obtained by analyzing a series of 2D spectra, including double-quantum-filtered correlation spectroscopy, total correlated spectroscopy and nuclear overhauser effect spectroscopy in H2O and D2O.

    展开全文
  • Your memory is your ability to remember things.(oft poss N) 2.A memory is something that you remember from the past.(usu with supp) 3.A computer's memory is the part of the computer where ...
  • wheel是什么意思

    2021-06-18 05:12:07
    (因惊讶、震惊或生气)突然转身 If you wheel around, you turn around suddenly where you are standing, often because you are surprised, shocked, or angry. e.g.He wheeled around to face her... 他突然转过...
  • 尺度因子是什么意思

    2020-12-31 09:13:10
    尺度因子是什么意思 18. 结合挑选出的最优预测因子,利用最优子集回归建立月平均降水的降尺度预测模型。 Downscaling monthly anomaly precipitation are predicted using the optimal subset regression from ...
  • 你知道T1、T2、T3里的T是什么意思吗?今天就一起来学习一下吧。航站楼的英文是Terminal Building,简称Terminal。T是Terminal的首字母。T1也就是航站楼1,全称Terminal 1。T2、 T3以此类推。T=terminal 英 [ˈ...
  • val(val是什么意思)

    千次阅读 2021-05-22 18:20:48
    Cint()函数 Cint(Num)'把非数字类型的数字字符转换为数字 Cint("1")'转换结果为数字 1 from dcl where val(shengfen)= 0" & , cnn, adOpenStatic 最后一句代码里的 . Val 函数,在它不能识别为数字的第一个字符...
  • 基本上我们对Mysqls的性能非常满意,类似的查询在瞬间完成.现在我们遇到了这个查询的问题SELECT dc.id,dmr.art_idFROM dmrJOIN dma ON dma.id = dmr.dml_idJOIN dc ON dc.id = dma.dc_idWHERE dmr.art_id = 2285获取...
  • The C10K problem 原文链接:http://www.kegel.com/c10k.html It's time for web servers to handle ten thousand clients simulta ... (源)V8 Engine 编译 v8 engine编译 *:first-child { margin-top: 0 !important...
  • BadBoy是什么意思

    2020-12-21 12:31:03
    BadBoy的意思 4. Badboy: Badboy is one of the more annoying concepts in the game. 恶名值Badboy:Badboy是游戏中众多令人厌恶的东西之一。 5. After that It took almost two years until my next part. This ...
  • what is the meaning \r carriage return and /f form feed in java. can any one give a small example,and when we have to use this type of symbolsi dont know where to try this type of symbolsSystem.out...
  • oracle语句中<< >>是什么意思以下文字资料是由(历史新知网...是什么意思plsql(oracle的编程语言)的标记符号,常用来跳出循环。使用goto可以跳到标记<>的位置,举例如下:for i in 1..10...
  • oracle中not exists 是什么意思 , oracle数据库中exists的作用oracle中not exists 是什么意思 , oracle数据库中exists的作用匿名网友:exists 是Oracle sql中的一个函数。表示是否存在符合某种条件的记录。如select *...
  • 英语mobile是什么中文意思相信很多人都有听说过mobile这一英语,但就不一定人人都会理解它的中文意思了。今天就让小编带你来看看英文单词mobile详细的中文意思,欢迎阅读。mobile的中文意思英 [ˈməʊbaɪl] 美 ...
  • Young generation objects are in a specific location into the heap, where the garbage collector will pass often. All new objects are created into the young generation region (called “eden”). When an...
  • Harvard economist Raj Chetty has pointed to economic and racial segregation, community density, the size of a community's middle class, the quality of schools, community religiosity, and family ...
  • 0和第一个字节发生了什么?好吧,我们会得到后来 – 见下面的空指针。>要更精确地定义指针存储的方式,以及内存和地址的关系,请参阅“关于内存地址的更多信息,以及您可能不需要知道的原因”。当您想要访问指针...
  • She was lovely, but married an early photographer and moved to the Pacific NW where she died early. 评论时间:2014/06/13 Black_X 译短,但甜。像一只羔羊。 原Short, but sweet. Like a lamb. 评论时间:...
  • 1、We found that most people are favourable to the idea.我们发现大多数人同意这个意见....我已经完全清楚他们要什么.——《简明英汉词典》3、As the jewel was in the rough state , he had no...
  • 出自-2015年12月阅读原文 Somewhere along the way I set aside my hopes of writing that flawless essay. 出自-2015年12月阅读原文 Perhaps the point of writing the flawless essay was not to give up, but to...
  • practice是什么意思

    2020-12-24 01:35:49
    The new doctor's practice was miles away from where I lived. 新开的诊所离我住的地方有几英里远。 In practice, workers do not work to satisfy their needs. 事实上,工人工作并不是为了满足本身的需要。 It ...
  • popped to是什么意思

    2020-12-23 10:26:34
    1. The intangible, throttling grip was ... Simon's eyes popped open in time to see a sleek gray shape skitter past, leap over Pryrates'boots and streak to the hatchway, where it bounded down into da...
  • 期刊摘选 The duo performed their original production at Philadelphia's Free Library. 后来他们的处女作在费城的免费阅览室上演. 期刊摘选 Though he had gone without sleep for three whole days, Ah Duo ...
  • 在“WHERE column =?”中MySQL中问号的意义是什么?我正在解剖一些代码,碰到这个,$sql = 'SELECT page.*, author.name AS author, updator.name AS updator ' . 'FROM '.TABLE_PREFIX.'page AS page ' . 'LEFT ...
  • 英语频道小编aurora整理了英语单词Addison的学习资料,关于Addison是什么意思这个问题进行了详细的讲解,包括Addison的英语意思解释、正确音标读音及发音、用法,Addison的英文短句例句含义讲解等与英文单词Addison...
  • Does anyone know what something like OR 1# means in the context of mysql ...解决方案It is MySQL's version of the line comment delimiter. In standard SQL, the line comment delimiter is --.-- This is...
  • 2017年考研真题(英语二)阅读理解 Section Ⅱ Students also benefit from learning something about coding before they get to college, where introductory computer-science classes are packed to the brim, ...
  • dump是什么意思

    千次阅读 2020-12-24 01:31:10
    倾卸If you dump something somewhere, you put it or unload it there quickly and carelessly.e.g.We dumped our bags at the nearby Grand Hotel and hurried towards the market...我们把包扔在附近的格兰德酒店...

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wheres是什么意思