cannot Go to definition in visual studio code

本文探讨了如何在 Visual Studio Code 中针对 C/C++ 代码实现跳转到定义的功能,并提及了可能遇到的问题及解决方案,例如是否安装了正确的类型定义。

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MQTT Client With MQTT Client, you can distribute and subscribe MQTT messages from text files within Visual Studio Code. Usage Write the following blocks in a file with the extension .mqtt. Each block starts on a line beginning with a unique string that starts with #. The line beginning the block must not contain any additional characters, including spaces. Broker connection block Write connection information to the block that starts with # %% to connect to the broker. Click Connect displayed above # %% to connect to the server. Name Required Default Description url ✓ URL of MQTT broker user User ID password Password Please be careful as it is saved in plain text in the file. clientId "mqtt_vsc_" + 10 random digits Client ID Example # %% url: mqtt://broker:1883 user: user password: password Subscription block Write one topic to subscribe per line in a block that starts with # $$. Click Subscribe all or Subscribe displayed above or next to # $$ to open a subscription tab and start subscribing. Example # $$ foo bar/# Publication block Write a block starting with # ## for each message you want to distribute. Write the distribution target topic setting and leave a blank line before writing the message payload. You cannot include the same line as the block starting line with # %% or other blocks in the message payload. It will be considered the start of another block. Click Publish Message displayed above # ## to distribute the message. Name Required Default Description topic ✓ Distribution destination topic qos 0 QoS 0, 1, or 2 retain false Retain flag true/false Example # ## Publish 'message' topic: foo qos: 0 retain: false message # ## Publish '{ "message": "hello" }' topic: bar qos: 1 retain: true { "message": "hello" } Variables You can define variables that can be referenced in various places. Write one variable per line in the file, in the form of name=value, above all the above blocks. To reference a variable, enclose the variable name in {{ }}. If the variable is not defined, treat it as a string. If you want to use the string enclosed in {{ }}, which refers to a variable that has already been defined, enclose it again with {{ }}. The places where variables can be referenced are as follows: Value part of the variable definition You can only reference variables defined above. Value part of the setting in the form of key: value Topic specification part of a Subscription block Message payload part of a Publication block Example host=broker TopicLevel1=foo TOPIC_FOO={{TopicLevel1}}/foo message=Hello, world! # %% url: http://{{host}}:1883 # $$ {{TopicLevel1}}/# # ## Publish '{ "message": "Hello, world!" }' topic: {{TopicLevel1}}/bar { "message": "{{message}}" } # ## Publish '{{message}}' topic: {{TOPIC_FOO}} {{{{message}}}} Comments Descriptions that do not follow the rules of each block are ignored and do not affect the operation. They can be used as comments. You cannot write comments in the message payload part of Subscription blocks or Publication blocks. Example comment host=broker comment message=Hello, world! # %% comment url: http://{{host}}:1883 comment # $$ {{TopicLevel1}}/# # ## comment topic: {{TopicLevel1}}/bar comment { "message": "{{message}}" } not a comment Settings Key Default Description mqttclient.subscription.show.retain false Show if the message is retained in the subscription window. ThirdParty Notices MQTT.js Copyright (c) 2015-2016 MQTT.js contributors Released under the MIT license https://github.com/mqttjs/MQTT.js/blob/main/LICENSE.md wait-queue Copyright (c) 2017 flarestart Released under the MIT license https://github.com/flarestart/wait-queue/blob/master/LICENSE
最新发布
07-13
Visual Studio Code 中安装 C# 扩展以进行开发是一个相对简单的过程,以下是详细的步骤说明: 1. **打开 Visual Studio Code**:启动已安装的 Visual Studio Code 程序。 2. **进入扩展市场**:点击左侧活动栏中的“Extensions”图标(或者使用快捷键 `Ctrl + Shift + X`)打开扩展面板。 3. **搜索 C# 扩展**:在扩展面板顶部的搜索框中输入 "C#"。这将列出所有与 C# 相关的扩展。 4. **选择合适的 C# 扩展**:根据需求选择适合的扩展进行安装。推荐安装以下几种扩展: - **官方 C# 扩展**:这是由微软提供的基础语言支持扩展,提供基本的语言服务支持[^3]。 - **C# Dev Kit**:这是一个官方扩展,提供了强大的代码编辑、调试和其他功能支持,特别适用于需要更全面开发体验的用户[^2]。 - **C# 开发工具包**:该扩展集合了多个 VS Code 扩展,共同提供丰富的 C# 编辑体验、AI 驱动的开发、解决方案管理和集成测试。 - **C# FixFormat** 和 **C# Extensions**:这两个扩展可以根据个人需求选择安装,前者用于代码样式格式化,后者提供一些快捷方式扩展[^4]。 5. **安装扩展**:找到所需的扩展后,点击其右侧的 "Install" 按钮进行安装。安装过程中可能需要等待一段时间,具体取决于网络速度和扩展大小。 6. **验证安装**:安装完成后,可以检查是否成功安装了 .NET Core SDK。如果在安装过程中 Visual Studio Code 处于打开状态,可能会遇到提示信息:“The .NET Core SDK cannot be located. .NET Core debugging will not be enabled. Make sure the .NET Core SDK is installed and is on the path.” 这时只需关闭并重新启动 Visual Studio Code 即可解决问题[^1]。 7. **创建 C# 项目**:安装完 .NET Core SDK 后,可以在终端中输入 `dotnet -h` 来验证安装是否成功。如果出现对应的版本号等信息,则表示安装成功。接下来,可以在终端中输入以下命令来创建一个 C# 控制台应用程序: ```bash dotnet new console -o MyFirstApp cd MyFirstApp code . ``` 上述命令会创建一个新的控制台应用程序,并将其打开在 Visual Studio Code 中。
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