csharp create ICS file extension

本文介绍了一种通过编程方式创建ICS文件的方法,并将其应用于邮件发送中,以便于用户能够直接将日程添加到自己的日历应用。示例代码展示了如何设置事件的详细属性,如开始时间、结束时间、地点等。
    

            string schLocation = "Conference Room 涂聚文约会你";
            string schSubject = "Business visit discussion约会";
            string schDescription = "Schedule description明天到深圳市福田區車公廟冶金大大廈約會";
            System.DateTime schBeginDate = Convert.ToDateTime("2/3/2012 10:00:00 PM");
            System.DateTime schEndDate = Convert.ToDateTime("2/3/2012 11:00:00 PM");

            

            String[] content = { "BEGIN:VCALENDAR",
                              "PRODID:-//Flo Inc.//FloSoft//EN",
                              "BEGIN:VEVENT",
                              "DTSTART:" + schBeginDate.ToUniversalTime().ToString("yyyyMMdd\\THHmmss\\Z"), 
                              "DTEND:" + schEndDate.ToUniversalTime().ToString("yyyyMMdd\\THHmmss\\Z"), 
                              "LOCATION:" + schLocation, 
                                "PRIORITY:1",
                                 "SEQUENCE:0",
	                            "DESCRIPTION;ENCODING=QUOTED-PRINTABLE:" + schDescription,
                              "SUMMARY:" + schSubject, "PRIORITY:3", 
                            "SEQUENCE:0",
	                     "END:VEVENT", "END:VCALENDAR" };
            String [] contents1={"BEGIN:VCALENDAR",
                "PRODID:-//XYZ Corp//My Product//EN",
                "VERSION:2.0",
                "CALSCALE:GREGORIAN",
                "METHOD:PUBLISH",
                "X-WR-CALNAME:My Calendar",
                "X-WR-TIMEZONE:(GMT-05:00) Eastern Time (US & Canada)",
                "BEGIN:VEVENT",
                "DTSTART:20061021T100000Z",
                "DTEND:20061021T130000Z",
                "DTSTAMP:20090211T175526Z",
                "UID:5f98dfd5-ac72-4ae1-b3c2-799a4e7c91f9",
                "CLASS:PUBLIC",
                "CREATED:20071104T183833Z",
                "DESCRIPTION: My description text.",
                "LAST-MODIFIED:20071104T183833Z",
                "LOCATION:涂聚文约会你 地址:123 Anywhere Street\\; Anyplace, NJ 12345\\; US",
                "SEQUENCE:0",
                "STATUS:CONFIRMED",
                "SUMMARY: My summary text.",
                "TRANSP:OPAQUE",
                "END:VEVENT",
                "BEGIN:VEVENT",
                "DTSTART:20061101T170000Z",
                "DTEND:20061101T180000Z",
                "DTSTAMP:20090211T175526Z",
                "UID:6eaef015-eb90-4e94-8e6c-0003b928969a",
                "CLASS:PUBLIC",
                "CREATED:20071104T183833Z",
                "DESCRIPTION: My description for number 2.",
                "LAST-MODIFIED:20071104T183833Z",
                "LOCATION: 涂聚文约会你 地址:123 Anywhere Street\\; Anyplace, NJ 12345\\; US",
                "SEQUENCE:0",
                "STATUS:CONFIRMED",
                "SUMMARY: My summary for #2.",
                "TRANSP:OPAQUE",
                "END:VEVENT",
                "END:VCALENDAR"
            };

            String [] contents2={
                "BEGIN:VCALENDAR",
                "PRODID:-//XYZ Corp//My Product//EN",
                "VERSION:2.0",
                "CALSCALE:GREGORIAN",
                "METHOD:PUBLISH",
                "X-WR-CALNAME:My Calendar",
                "X-WR-TIMEZONE:(GMT-05:00) Eastern Time (US & Canada)",
                "BEGIN:VEVENT",
                "DTSTART:20061021T100000Z",
                "DTEND:20061021T130000Z",
                "DTSTAMP:20090211T175526Z",
                "UID:5f98dfd5-ac72-4ae1-b3c2-799a4e7c91f9",
                "CLASS:PUBLIC",
                "CREATED:20071104T183833Z",
                "DESCRIPTION: My description text.",
                "LAST-MODIFIED:20110721T105554Z",
            "LOCATION:涂聚文约会你",
            "SEQUENCE:0",
            "STATUS:CONFIRMED",
            "SUMMARY:Insert something",
            "TRANSP:OPAQUE",
            "BEGIN:VALARM",
            "ACTION:DISPLAY",
            "DESCRIPTION:This is an event reminder",
            "TRIGGER:-P0DT0H10M0S",
            "END:VALARM",
            "END:VEVENT",
            "BEGIN:VEVENT",
            "DTSTART:20110909T083000Z",
            "DTEND:20110909T103000Z",
            "DTSTAMP:20110722T004312Z",
            "UID:e5fhdjff6vakjftnl3l9vjs64k@google.com",
            "CREATED:20110721T105410Z",
            "DESCRIPTION:涂聚文明天到深圳市福田區車公廟冶金大廈約會",
            "LAST-MODIFIED:20110721T111008Z",
            "LOCATION:涂聚文约会",
            "SEQUENCE:1",
            "STATUS:CONFIRMED",
            "SUMMARY:Insert something",
            "TRANSP:OPAQUE",
            "BEGIN:VALARM",
            "ACTION:DISPLAY",
            "DESCRIPTION:Insert something",
            "TRIGGER:-P0DT0H10M0S",
            "END:VALARM",
            "END:VEVENT",
            "END:VCALENDAR"
            };

             String [] contents3={"BEGIN:VCALENDAR",
                    "PRODID:-//Google Inc//Google Calendar 70.9054//EN",
                    "VERSION:2.0",
                    "CALSCALE:GREGORIAN",
                    "METHOD:PUBLISH",
                    "X-WR-CALNAME:涂聚文约会你",
                    "X-WR-TIMEZONE:Insert something",
                    "X-WR-CALDESC:",
                    "BEGIN:VEVENT",
                    "DTSTART:20110909T180000Z",
                    "DTEND:20110909T200000Z",
                    "DTSTAMP:20110722T004312Z",
                    "UID:et53m4on1ii70en7uuv1thjr58@google.com",
                    "CREATED:20110721T105553Z",
                    "DESCRIPTION:",
                    "LAST-MODIFIED:20110721T105554Z",
                    "LOCATION:涂聚文约会你",
                    "SEQUENCE:0",
                    "STATUS:CONFIRMED",
                    "SUMMARY:Insert something",
                    "TRANSP:OPAQUE",
                    "BEGIN:VALARM",
                    "ACTION:DISPLAY",
                    "DESCRIPTION:This is an event reminder",
                    "TRIGGER:-P0DT0H10M0S",
                    "END:VALARM",
                    "END:VEVENT",

                    "BEGIN:VEVENT",
                    "DTSTART:20110909T083000Z",
                    "DTEND:20110909T103000Z",
                    "DTSTAMP:20110722T004312Z",
                    "UID:e5fhdjff6vakjftnl3l9vjs64k@google.com",
                    "CREATED:20110721T105410Z",
                    "DESCRIPTION:",
                    "LAST-MODIFIED:20110721T111008Z",
                    "LOCATION:Auckland",
                    "SEQUENCE:1",
                    "STATUS:CONFIRMED",
                    "SUMMARY:涂聚文约会你",
                    "TRANSP:OPAQUE",
                    "BEGIN:VALARM",
                    "ACTION:DISPLAY",
                    "DESCRIPTION:Insert something",
                    "TRIGGER:-P0DT0H10M0S",
                    "END:VALARM",
                    "END:VEVENT",

                    "END:VCALENDAR"
             };

             String [] contents4={"BEGIN:VCALENDAR",
                "PRODID:-//Microsoft Corporation//Outlook 12.0 MIMEDIR//EN",
                "VERSION:2.0",
                "METHOD:PUBLISH",
                "X-CALSTART:20100611T140000Z",
                "X-CALEND:20100711T201500Z",
                "X-WR-RELCALID:{0000002E-5A22-AA75-713B-5C3715764495}",
                "X-WR-CALNAME: World Cup Football Complete Match Schedule 2010 South Africa",
                "BEGIN:VEVENT",
                "CATEGORIES:World Cup Football Complete Match Schedule 2010 South Africa",
                "CLASS:PUBLIC",
                "CREATED:20100608T231102Z",
                "DESCRIPTION:Group A\nFollow MarkThisDate on Twitter   markthisdate", 
                "DTEND:20100611T154500Z",
                "DTSTAMP:20100513T100200Z",
                "DTSTART:20100611T140000Z",
                "LAST-MODIFIED:20100608T231102Z",
                "LOCATION:涂聚文约会你",
                "PRIORITY:5",
                "SEQUENCE:0",
                "SUMMARY:涂聚文约会你 地址:涂聚文明天到深圳市福田區車公廟冶金大廈約會",
                "TRANSP:TRANSPARENT",
                "UID:005ef5a170ab453276aad021756e5fde@dusystem.com",
                "X-MICROSOFT-CDO-BUSYSTATUS:FREE",
                "X-MICROSOFT-CDO-IMPORTANCE:1",
                "END:VEVENT",
                "BEGIN:VEVENT",
                "CATEGORIES:涂聚文约会你 地址:涂聚文明天到深圳市福田區車公廟冶金大廈約會",
                "CLASS:PUBLIC",
                "CREATED:20100608T231102Z",
                "DESCRIPTION:天下为公",
                "DTEND:20100611T201500Z",
                "DTSTAMP:20100513T100200Z",
                "DTSTART:20100611T183000Z",
                "LAST-MODIFIED:20100608T231102Z",
                "LOCATION:Cape Town ",
                "PRIORITY:5",
                "SEQUENCE:0",
                 "SUMMARY:Uruguay - France",
                "TRANSP:TRANSPARENT",
                "UID:9660590c514358c5bceed9e75bed0222@dusystem.com",
                "X-MICROSOFT-CDO-BUSYSTATUS:FREE",
                "X-MICROSOFT-CDO-IMPORTANCE:1",
                "END:VEVENT",
                "BEGIN:VEVENT",
                "CATEGORIES:涂聚文约会你 地址:World Cup Football Complete Match Schedule 2010 South Africa",
                "CLASS:PUBLIC",
                "CREATED:20100608T231102Z",
                "DESCRIPTION:不作為的官都在步步高升",
                "DTEND:20100612T131500Z",
                "DTSTAMP:20100513T100200Z",
                "DTSTART:20100612T113000Z",
                "LAST-MODIFIED:20100608T231102Z",
                "LOCATION:不作為的官都在步步高升",
                "PRIORITY:5",
                "SEQUENCE:0",
                "SUMMARY:Korea Republic - Greece",
                "TRANSP:TRANSPARENT",
                "UID:5a9eaca2435fb52e1c95ddb786f82efa@dusystem.com",
                "X-MICROSOFT-CDO-BUSYSTATUS:FREE",
                "X-MICROSOFT-CDO-IMPORTANCE:1",
                "END:VEVENT",
                "END:VCALENDAR"
                };

           String [] contents5={"BEGIN:VCALENDAR",
                "PRODID:-//Microsoft Corporation//Outlook 12.0 MIMEDIR//EN",
                "VERSION:2.0",
                "METHOD:PUBLISH",
                "X-MS-OLK-FORCEINSPECTOROPEN:TRUE",
                "BEGIN:VEVENT",
                "CLASS:PUBLIC",
                "CREATED:20120203T120222Z",
                "DESCRIPTION:Schedule description明天到深圳市福田區車公廟冶金大廈約會",
                "DTEND:20120203T150000Z",
                "DTSTAMP:20120203T120200Z",
                "DTSTART:20120203T140000Z",
                "LAST-MODIFIED:20120203T120222Z",
                "LOCATION:Conference Room 涂聚文约会你",
                "PRIORITY:1",//提醒时间
                "SEQUENCE:0",
                "SUMMARY:Business visit discussion约会",
                "TRANSP:OPAQUE",
                "UID:040000008200E00074C5B7101A82E00800000000B0D4B7BDAEE2CC01000000000000000010000000C05DF5EA2953C0499548F598C334C23C",
                "DESCRIPTION:X-ALT-DESC;FMTTYPE=text/html:<!DOCTYPE HTML PUBLIC -//W3C//DTD HTML 3.2//EN"+
	                ">\n<HTML>\n<HEAD>\n<META NAME=Generator CONTENT=MS Exchange Server ve"+
	                "rsion 08.00.0681.000>\n<TITLE></TITLE>\n</HEAD>\n<BODY>\n<!-- Converted f"+
	                "rom text/plain format -->\n\n<P>Schedule description明天到深圳市福"+
	                "田區車公廟冶金大大廈約會\n</P>\n\n</BODY>\n</HTML>",
                "X-MICROSOFT-CDO-BUSYSTATUS:BUSY",
                "X-MICROSOFT-CDO-IMPORTANCE:2",
                "BEGIN:VALARM",
                "TRIGGER:-PT1440M",
                "ACTION:DISPLAY",
                "DESCRIPTION:Reminder",
                "END:VALARM",
                "END:VEVENT",
                "END:VCALENDAR"};
          
            System.IO.File.WriteAllLines(Server.MapPath("Sample2.ics"), content,System.Text.Encoding.UTF8);
            System.IO.File.WriteAllLines(Server.MapPath("Sample3.ics"), contents1, System.Text.Encoding.UTF8);
            System.IO.File.WriteAllLines(Server.MapPath("Sample4.ics"), contents2, System.Text.Encoding.UTF8);
            System.IO.File.WriteAllLines(Server.MapPath("Sample5.ics"), contents3, System.Text.Encoding.UTF8);
            System.IO.File.WriteAllLines(Server.MapPath("Sample6.ics"), contents4, System.Text.Encoding.UTF8);
            System.IO.File.WriteAllLines(Server.MapPath("Sample7.ics"), contents5, System.Text.Encoding.UTF8);
            //METHOD TO SEND EMAIL IS CALLED
            SendMail();
            //Thread t1 = new System.Threading.Thread(new ThreadStart(SendMail));
            //t1.Start();


内容概要:本文围绕六自由度机械臂的人工神经网络(ANN)设计展开,重点研究了正向与逆向运动学求解、正向动力学控制以及基于拉格朗日-欧拉法推导逆向动力学方程,并通过Matlab代码实现相关算法。文章结合理论推导与仿真实践,利用人工神经网络对复杂的非线性关系进行建模与逼近,提升机械臂运动控制的精度与效率。同时涵盖了路径规划中的RRT算法与B样条优化方法,形成从运动学到动力学再到轨迹优化的完整技术链条。; 适合人群:具备一定机器人学、自动控制理论基础,熟悉Matlab编程,从事智能控制、机器人控制、运动学六自由度机械臂ANN人工神经网络设计:正向逆向运动学求解、正向动力学控制、拉格朗日-欧拉法推导逆向动力学方程(Matlab代码实现)建模等相关方向的研究生、科研人员及工程技术人员。; 使用场景及目标:①掌握机械臂正/逆运动学的数学建模与ANN求解方法;②理解拉格朗日-欧拉法在动力学建模中的应用;③实现基于神经网络的动力学补偿与高精度轨迹跟踪控制;④结合RRT与B样条完成平滑路径规划与优化。; 阅读建议:建议读者结合Matlab代码动手实践,先从运动学建模入手,逐步深入动力学分析与神经网络训练,注重理论推导与仿真实验的结合,以充分理解机械臂控制系统的设计流程与优化策略。
### C# 中使用 `File.Create` 创建文件的方法 在 C# 中,创建文件通常可以通过 `System.IO.File` 类的静态方法实现。其中,`File.Create` 是一种常用的文件创建方式,用于生成一个新的空文件或覆盖已存在的同名文件。 #### 基本用法 `File.Create` 方法接受一个文件路径作为参数,并返回一个 `FileStream` 对象。该对象可用于后续的文件写入操作。如果目标文件已经存在,则其内容将被清空;如果不存在,则会创建新文件。 ```csharp using System; using System.IO; class Program { static void Main() { string filePath = "example.txt"; using (FileStream fs = File.Create(filePath)) { // 可以在此处进行文件写入操作 byte[] data = new System.Text.UTF8Encoding(true).GetBytes("这是文件的内容"); fs.Write(data, 0, data.Length); } // 自动释放资源并关闭流 } } ``` 上述代码示例中,`using` 语句确保了 `FileStream` 在使用完毕后自动关闭和释放资源,避免了因未关闭流而导致的文件锁定问题[^1]。 #### 注意事项 - **文件占用问题**:在调用 `File.Create` 后,若未正确关闭返回的 `FileStream`,则可能导致文件被当前进程占用,从而在后续尝试访问该文件时抛出异常,如“因为另一个进程正在使用此文件”等错误信息。解决办法是在创建文件后立即调用 `.Close()` 或使用 `using` 语句块管理流的生命周期[^3]。 - **判断文件是否存在**:为了避免不必要的覆盖操作,可以在创建文件前使用 `File.Exists` 检查文件是否已经存在: ```csharp if (!File.Exists(filePath)) { using (FileStream fs = File.Create(filePath)) { // 文件写入逻辑 } } ``` - **文件路径处理**:建议使用 `Path.Combine` 方法构建文件路径,以保证不同操作系统下的兼容性: ```csharp string filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "sys.ini"); ``` #### 其他文件创建方式 除了 `File.Create`,还可以使用以下方法实现文件创建: - **`File.WriteAllText` / `File.WriteAllLines` / `File.WriteAllBytes`**:这些方法可以直接将字符串、字符串数组或字节数组写入文件,适用于一次性写入操作且无需手动管理流对象: ```csharp File.WriteAllText("textFile.txt", "新的文本内容"); ``` - **`StreamWriter` / `FileStream`**:对于需要多次写入或追加内容的场景,推荐使用 `StreamWriter`(文本)或 `FileStream`(二进制),并结合 `using` 语句确保资源释放: ```csharp using (StreamWriter writer = new StreamWriter("textFile.txt", true)) // true 表示追加模式 { writer.WriteLine("新的一行内容"); } ``` 通过合理选择文件创建与写入方式,可以有效提升程序的健壮性和可维护性。 ---
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