I'm trying to do remove javascript comments via regex in C# and have become stuck. I want to remove any occurrences of double slash // style comments. My current regex is (?<!:)//[^rn]* which will catch all comments and prevent matching of http:// . However, the negative lookbehind was lazy and of course bit me back in the following test case: var XSLPath = "//" + Node; So I'm lo
我试图通过C#中的正则表达式去除javascript评论,并且陷入了僵局。 我想删除任何出现的双斜杠//样式注释。 我当前的正则表达式是(?<!:)//[^rn]* ,它将捕获所有注释并阻止匹配http:// 。 然而,负面的负面看法是懒惰的,当然在下面的测试案例中让我回想起来: var XSLPath = "//" + Node; 所以我正在寻找一个正则表达式,它会执行一个后台查看是否在匹配之前出现偶数个双引号( " ),但我不确定这是否可能,或者
Is there any point to freeing memory in an atexit() function? I have a global variable that gets malloc'ed after startup. I could write an atexit() function to free it, but isn't the system going to reclaim all that memory when the program exits anyway? Is there any benefit to being tidy and actively cleaning it up myself? Not in C - it's like rearranging the deck chairs while
在atexit()函数中释放内存有什么意义吗? 我有一个全局变量,在启动后获取malloc'ed。 我可以编写一个atexit()函数来释放它,但当程序退出时,系统是不是会收回所有内存? 整理和积极清理自己有什么好处吗? 不在C中 - 就像船在你周围下沉时重新安排躺椅。 在C ++中,答案是不同的,因为对象可以在析构函数中删除临时文件等等,所以你需要确保这些文件被调用。 释放它的一个好处是,如果你曾经做过任何内存泄漏
I'm reading about the C# garbage collector, and how the CLR builds object graphs. The chapter references different roots that could be active for the object: • References to global objects (though these are not allowed in C#, CIL code does permit allocation of global objects) • References to any static objects/static fields • References to local objects within an application's code
我正在阅读有关C#垃圾回收器的内容,以及CLR如何构建对象图。 该章节引用可能对该对象有效的不同根源: •对全局对象的引用(虽然这些在C#中是不允许的,但CIL代码确实允许分配全局对象) •对任何静态对象/静态字段的引用 •对应用程序代码库中的本地对象的引用 •对传入方法的对象参数的引用 •对等待完成的对象的引用(在本章后面介绍) •任何引用对象的CPU寄存器 我想知道是否有人可以在代码中给出这些根的例子
Hi I hope someone can help me out here. I have a Web Application (asp.net) on my local machine, I am trying to upload video to YouTube using this sample https://developers.google.com/youtube/v3/code_samples/dotnet#upload_a_video I have set up client id and secret for Web application in Google console when I try to upload video a browser tab opens to select one of my google accounts and once I
嗨,我希望有人能帮助我。 我的本地计算机上有一个Web应用程序(asp.net),我正尝试使用此示例https://developers.google.com/youtube/v3/code_samples/dotnet#upload_a_video将视频上传到YouTube 我在Google控制台中为Web应用程序设置了客户端ID和密码,当我尝试上传视频时,浏览器选项卡打开以选择我的一个Google帐户,一旦我登录,我就会收到redirect_uri_mismatch该页面上的响应详细信息如下: cookie_policy_enforce=f
I recently read about SQLite and thought I would give it a try. When I insert one record it performs okay. But when I insert one hundred it takes five seconds, and as the record count increases so does the time. What could be wrong? I am using the SQLite Wrapper (system.data.SQlite) : dbcon = new SQLiteConnection(connectionString); dbcon.Open(); //---INSIDE LOOP SQLiteCommand sqlComm = ne
我最近读了SQLite,并认为我会试试看。 当我插入一条记录时,它表现良好。 但是当我插入一百个时,它需要五秒钟,并且随着记录数量的增加,时间也会增加。 什么可能是错的? 我正在使用SQLite包装(system.data.SQlite) : dbcon = new SQLiteConnection(connectionString); dbcon.Open(); //---INSIDE LOOP SQLiteCommand sqlComm = new SQLiteCommand(sqlQuery, dbcon); nRowUpdatedCount = sqlComm.ExecuteNonQuery()
I've seen people trying to read files like this in a lot of posts lately. Code #include <stdio.h> #include <stdlib.h> int main(int argc, char **argv) { char * path = argc > 1 ? argv[1] : "input.txt"; FILE * fp = fopen(path, "r"); if( fp == NULL ) { perror(path); return EXIT_FAILURE; } while( !feof(fp) ) { /* THIS IS WRONG */ /*
我见过很多人在最近很多帖子中试图阅读这样的文件。 码 #include <stdio.h> #include <stdlib.h> int main(int argc, char **argv) { char * path = argc > 1 ? argv[1] : "input.txt"; FILE * fp = fopen(path, "r"); if( fp == NULL ) { perror(path); return EXIT_FAILURE; } while( !feof(fp) ) { /* THIS IS WRONG */ /* Read and process data from fil
I am writing an application that need to run in iOS, Android, Windows Phone, WPF, Windows 8 Metro, Linux and Mac. I have about 95 % of the code in the cross-platform realm but the UI and some things obviously needs to be coded specifically for each platform. Now, we need to add some very simple database support in the app and I would love to work against Sqlite from the cross-platform realm in
我正在编写一个需要在iOS,Android,Windows Phone,WPF,Windows 8 Metro,Linux和Mac上运行的应用程序。 我在跨平台领域拥有大约95%的代码,但UI和一些事情显然需要针对每个平台编码。 现在,我们需要在应用程序中添加一些非常简单的数据库支持,并且我希望能够在我的代码中针对来自跨平台领域的Sqlite进行工作。 这可以用任何现有的Sqlite包装完成,还是需要创建自己的? 或者我应该使用几个具有相同语法的Sqlite包装器
I am using System.Data.Sqlite to access SQLite database in C#. I have a query which must read through rows in a table. While iterating through the rows and while the reader is open, certain SQL updates must be performed. I am running into a "database is locked" exception. The SQLite documentation states: When a process wants to read from a database file, it followed the following
我正在使用System.Data.Sqlite访问C#中的SQLite数据库。 我有一个查询必须通过表中的行读取。 在遍历行时以及阅读器打开时,必须执行某些SQL更新。 我遇到了“数据库被锁定”异常。 SQLite文档指出: 当进程想要从数据库文件读取时,它遵循以下步骤顺序: 打开数据库文件并获取SHARED锁。 该文件进一步说明了“共享”锁定: 数据库可能被读取但不能写入。 任何数量的进程可以同时保存SHARED锁,因此可以有多个同时读
我如何将字符串(例如“hello”)复制到C#中的系统剪贴板中,所以下次按CTRL + V时,我会得到“hello”? You'll need a namespace declaration: using System.Windows.Forms; OR for WPF: using System.Windows; To copy an exact string (literal in this case): Clipboard.SetText("Hello, clipboard"); To copy the contents of a textbox: Clipboard.SetText(txtClipboard.Text); See here for an example. Or...
我如何将字符串(例如“hello”)复制到C#中的系统剪贴板中,所以下次按CTRL + V时,我会得到“hello”? 你需要一个命名空间声明: using System.Windows.Forms; OR for WPF: using System.Windows; 要复制一个确切的字符串(在这种情况下是文字): Clipboard.SetText("Hello, clipboard"); 要复制文本框的内容,请执行以下操作: Clipboard.SetText(txtClipboard.Text); 看到这里的例子。 或者...官方的MSDN文档或这里
I am trying with no luck to deserialize object graph with circular reference, Json.net works well when serializing circular references : adding a $id to objects and replacing objects with $ref = *objectId, When i send the same data back to the MVC action, it won't deserialize correctly - replacing the $refs with empty objects. I use json.net to both serialize and deserialize, deserializin
我试图用循环引用反序列化对象图, Json.net在序列化循环引用时运行良好:向对象添加$ id并用$ ref = * objectId替换对象,当我将相同的数据发送回MVC动作时,它不会正确反序列化 - 用$替换空的物体。 我使用json.net来序列化和反序列化,反序列化在自定义IValueProvider中实现 - https://json.codeplex.com/discussions/347099 我注意到,当反序列化到一个匿名对象 JsonConverter.Deserialize(json); 它不会处理循环引