#CTS

Why does typeof array with objects return “Object” and not “Array”?

https://stackoverflow.com/questions/4775722/check-if-object-is-an-arrayOneoftheweirdbehaviourandspecinJavascriptisthetypeofArrayis Object.Youcancheckifthev...
代码星球 ·2021-02-08

Procedure or function 'pu_usr_User' expects parameter '@WhiteIp', which was not supplied.

错误写法 @WhiteIpNVARCHAR(MAX)NULL, /IwrotewithparametersthatarepredefinedTheyarenot"predefined"logically,somewhereinsideyourcode.ButasargumentsofSPtheyha...

Data Transfer Objects in abp

https://aspnetboilerplate.com/Pages/Documents/Data-Transfer-ObjectsDataTransferObjectsareusedtotransferdatabetweentheApplicationLayerandthePresentationLayer.&nb...

Why are C# structs immutable?

classTransform{publicPointp{get;set;}publicPointp2;publicvoidShowV(){Console.WriteLine(p.X+"..."+p.Y);}}[Test]publicvoidTestChuck(){Transformt=newTransform();t....
代码星球 ·2021-02-08

Some projects cannot be imported because they already exist in the workspace

Eclipse导入项目的时候提示Someprojectscannotbeimportedbecausetheyalreadyexistintheworkspace我看了一个下我的工程的名字,在eclipse的workspace目录下的D:WorkSpaceeclipse.metadata.pluginsorg.ecli...

maven打包遇到Aggregator projects require 'pom' as packaging问题解决

springboot多模块项目打包时遇到[ERROR]   'packaging'withvalue'jar'isinvalid.Aggregatorprojectsrequire'pom'aspackaging.@line3,column102在parent项目中的pom.xml<...

String系列-----AbstractStringBuilder

1.AbstractStringBuilder是StringBuffer和StringBuilder的父类packagecom.amazing.jdk.string_2017_12_31;importjava.util.Arrays;publicabstractclassMyAbstractStringBuilder{...

Mybatis抛出:Cannot obtain primary key information from the database, generated objects may be incomplete

使用mybatisgenerator生成pojo、dao、mapper时,可能会遇到Cannotobtainprimarykeyinformationfromthedatabase,generatedobjectsmaybeincomplete无法生成主键相关方法具体详细解决方案有人已经提出了,很长,https://b...

Intellij IDEA 14.x 中的Facets和Artifacts的区别

Facets和Artifacts的区别:Facets 表示这个module有什么特征,比如Web,Spring和Hibernate等; Artifact 是maven中的一个概念,表示某个module要如何打包,例如warexploded、war、jar、ear等等这种打包形式;一个mod...

curl Error : maximum redirects followed , 这种问题的一种原因 .

在stackoverflow上查找到有些网站上需要返回一些cookie的,所以当我们curl当相应的网站时,必须要将返回的cookie保存起来。 $cookie = tempnam ("/tmp", "CURLCOOKIE"); curl_setopt(&nb...

【转】Windows2012设置文件夹权限报错:failed to enumerate objects in the container.

Windows2012设置文件夹权限报错:failedtoenumerateobjectsinthecontainer. 通过cmd命令进行设置 找到系统中的cmd.exe文件,或者在桌面上新建一个批处理文件(打文本文档输入cmd保存,将文件本文件后辍txt改为bat),右击用管理员权限打开批处理文...

error C2440: “static_cast”: 无法从“LRESULT (__thiscall CTextProgressCtrl::* )(UINT,LPCTSTR)”转换为“LRESULT (__thiscall CWnd::* )(WPARAM,LPARAM)

转自原文errorC2440“static_cast”无法从“void(__thiscallC*)(void)...    errorC2440:“static_cast”:无法从“LRESULT(__thiscallCTextProgressCtrl::*)(UINT,LPCT...

解决“cv2.error: OpenCV(3.4.2) C:projectsopencv-pythonopencvmoduleshighguisrcwindow.cpp:356:...”

 主要是图片路径中“文件夹分隔符”使用的错误将“”改成“/”就好了修改后的测试代码如下:x.py#导入cv模块importcv2ascv#读取图像,支持bmp、jpg、png、tiff等常用格式img=cv.imread("./xx.pn...

poj 1611 The Suspects(并查集)

TheSuspectsTimeLimit: 1000MS MemoryLimit: 20000KTotalSubmissions: 18723 Accepted: 9041DescriptionSevereacuterespiratorysyndrome(SA...

django中的objects.get和objects.filter方法的区别

为了说明它们两者的区别定义2个modelsclassStudent(models.Model):name=models.CharField('姓名',max_length=20,default='')age=models.CharField('年龄',max_length=20,default='')classBook...
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