VSCode运行C++¶
g++ --version
g++ fileName.cpp -o fileNme.out -W -Wall会编译一个.out的文件，然后直接运行./fileName.out文件
-W -Wall会输出警告错误提示。
编译多个C++文件¶
g++ fileName1.cpp fileName2.cpp
Code Runner插件。
settings.json¶
{
"editor.fontSize": 14,
// --------------------------------------------------------------------------------------
// Code Runner
// To run code:
// use shortcut "Ctrl Opt N" *
// or press F1 and then select/type Run Code,
// or right click the Text Editor and then click Run Code in editor context menu
// or click Run Code button in editor title menu
// or click Run Code button in context menu of file explorer
// To stop the running code:
// use shortcut "Ctrl Opt M" *
// or press F1 and then select/type Stop Code Run
// or right click the Output Channel and then click Stop Code Run in context menu
"code-runner.executorMap": {
// Introduction:
// Make sure the executor PATH of each language is set in the environment variable.
// You could also add entry into "code-runner.executorMap" to set the executor PATH.
// Supported customized parameters:
// $workspaceRoot: The path of the folder opened in VS Code
// $dir: The directory of the code file being run
// $fullFileName: The full name of the code file being run
// $fileName: The base name of the code file being run, that is the file without the directory
// $fileNameWithoutExt: The base name of the code file being run without its extension
/* ------ 编译、运行只有一个文件的cpp文件 ------ */
// 注：路径中有空格不会出现问题
"cpp": "g++ $fullFileName -o $dir\"$fileNameWithoutExt\"\".out\" -W -Wall -O2 -std=c++17 && $dir\"$fileNameWithoutExt\"\".out\"",
// 其中 $fullFileName 是绝对路径，是主文件
// 自己决定是否加入 && rm $dir\"$fileNameWithoutExt\"\".out\"（也可以添加"files.exclude"）
/* ------ 编译、运行多个cpp文件 ------ */
// "cpp": "g++ $fullFileName <file_to_link> -o $dir\"$fileNameWithoutExt\"\".out\" -W -Wall -O2 -std=c++17 && $dir\"$fileNameWithoutExt\"\".out\"",
// <file_to_link>的写法：
// 一般的，你也可以直接写绝对路径
// \"/path/xxxx.cpp\"
// 如果你链接的cpp文件和主文件在一个目录下：
// $dir\"xxxx.cpp\"
// 更一般的，如果你链接的cpp文件不和主文件在一个目录下，需要从当前VSCode的工作目录补充相对路径从而形成绝对路径：
// $workspaceRoot\"relative/path/xxxx.cpp\"
/* ------ 编译c文件 ------ */
"c": "gcc $fullFileName -o $dir\"$fileNameWithoutExt\"\".out\" -W -Wall -O2 -std=c17 && $dir\"$fileNameWithoutExt\"\".out\"",
// "c": "gcc $fullFileName <file_to_link> -o $dir\"$fileNameWithoutExt\"\".out\" -W -Wall -O2 -std=c17 && $dir\"$fileNameWithoutExt\"\".out\"",
},
// Whether to clear previous output before each run (default is false):
"code-runner.clearPreviousOutput": true,
// Whether to save all files before running (default is false):
"code-runner.saveAllFilesBeforeRun": false,
// Whether to save the current file before running (default is false):
"code-runner.saveFileBeforeRun": true,
// Whether to show extra execution message like [Running] ... and [Done] ... (default is true):
"code-runner.showExecutionMessage": true, // cannot see that message is you set "code-runner.runInTerminal" to true
// Whether to run code in Integrated Terminal (only support to run whole file in Integrated Terminal, neither untitled file nor code snippet) (default is false):
"code-runner.runInTerminal": true, // cannot input data when setting to false
// Whether to preserve focus on code editor after code run is triggered (default is true, the code editor will keep focus; when it is false, Terminal or Output Channel will take focus):
"code-runner.preserveFocus": false,
// Whether to ignore selection to always run entire file. (Default is false)
"code-runner.ignoreSelection": true,
// --------------------------------------------------------------------------------------
}
tasks.json¶
{
// Tasks in VS Code can be configured to run scripts and start processes
// so that many of these existing tools can be used from within VS Code
// without having to enter a command line or write new code.
// Workspace or folder specific tasks are configured from the tasks.json file in the .vscode folder for a workspace.
"version": "2.0.0",
"tasks": [
{
// The task's label used in the user interface.
// Terminal -> Run Task... 看到的名字
"label": "g++ compile",
// The task's type. For a custom task, this can either be shell or process.
// If shell is specified, the command is interpreted as a shell command (for example: bash, cmd, or PowerShell).
// If process is specified, the command is interpreted as a process to execute.
"type": "shell",// shell: 输入命令
// The actual command to execute.
// 因为g++已经在环境变量中了，所以我们这里写命令就行不用写g++的绝对路径
"command": "g++",
"args": [
"${file}", // 表示当前文件（绝对路径）
// 在这里添加你还需要链接的.cpp文件
"-o",
"${fileDirname}/${fileBasenameNoExtension}.out",
"-W",
"-Wall",
"-g",
"-std=c++17",
],
// Defines to which execution group this task belongs to.
// It supports "build" to add it to the build group and "test" to add it to the test group.
// Tasks that belong to the build/test group can be executed by running Run Build/Test Task from the Command Palette (sft cmd P).
// Valid values:
// "build",
// {"kind":"build","isDefault":true},
// "test",
// {"kind":"test","isDefault":true},
// "none".
"group": {
"kind": "build",
"isDefault": true, // Defines if this task is the default task in the group.
},
// Configures the panel that is used to present the task's output and reads its input.
"presentation": {
// Controls whether the executed command is echoed to the panel. Default is true.
"echo": true, // 打开可以看到编译的命令，把命令本身输出一次
// Controls whether the terminal running the task is revealed or not. Default is "always".
// always: Always reveals the terminal when this task is executed.
// silent: Only reveals the terminal if the task exits with an error or the problem matcher finds an error.(会显示错误，但不会显示警告)
// never: Never reveals the terminal when this task is executed.
"reveal": "silent", // 控制在集成终端中是否显示。如果没问题那我不希望终端被切换、如果有问题我希望能看到编译过程哪里出错，所以选silent(可能always会好一些)
// Controls whether the panel takes focus. Default is false.
"focus": false, // 我的理解是：是否将鼠标移过去。因为这个是编译任务，我们不需要输入什么东西，所以选false
// Controls if the panel is shared between tasks, dedicated to this task or a new one is created on every run.
"panel": "shared", // shared:不同任务的输出使用同一个终端panel（为了少生成几个panel我们选shared）
// Controls whether to show the `Terminal will be reused by tasks, press any key to close it` message.
"showReuseMessage": true, // 就一句话，你想看就true，不想看就false
// Controls whether the terminal is cleared before executing the task.
"clear": false, // 还是保留之前的task输出信息比较好。所以不清理
},
// Other two choices: options & runOptions (cmd I to use IntelliSense)
"options": {
// The current working directory of the executed program or script. If omitted Code's current workspace root is used.
"cwd": "${workspaceFolder}",// 默认就是这个，删掉也没问题
},
// problemMatcher: 用正则表达式提取g++的输出中的错误信息并将其显示到VS Code下方的Problems窗口
// check: https://code.visualstudio.com/docs/editor/tasks#_defining-a-problem-matcher
"problemMatcher": {
"owner": "cpp",
"fileLocation": "absolute",
"pattern": {
"regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
"file": 1,
"line": 2,
"column": 3,
"severity": 4,
"message": 5,
},
},
// 官网教程 https://code.visualstudio.com/docs/cpp/config-clang-mac#_build-helloworldcpp
// 提到了另一种problemMatcher，但试了之后好像不起作用，甚至还把我原本的电脑搞出了一些问题……
},
{
"label": "Open Terminal.app",
"type": "shell",
"command": "osascript -e 'tell application \"Terminal\"\ndo script \"echo now VS Code is able to open Terminal.app\"\nend tell'",
"problemMatcher": [],
"group": "none",
}
]
}