如何使用VSCode中的Code Runner插件执行golang代码

如何使用VSCode中的Code Runner 插件执行golang代码

project的文档结如下

mylab

|—- main.go

|—- test.go

main.go

package main

func main() {
	test()
}

test.go

package main

func test() {
	println("in test")
}

在 Code Runner插件的Doc地址 中

找到如下Configuration的配置说明

Configuration  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. e.g. To set the executor PATH for ruby, php and html:

{
    "code-runner.executorMap": {
        "javascript": "node",
        "php": "C:\\php\\php.exe",
        "python": "python",
        "perl": "perl",
        "ruby": "C:\\Ruby23-x64\\bin\\ruby.exe",
        "go": "go run",
        "html": "\"C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe\"",
        "java": "cd $dir && javac $fileName && java $fileNameWithoutExt",
        "c": "cd $dir && gcc $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    }
}

{
    "code-runner.executorMapByGlob": {
        "pom.xml": "cd $dir && mvn clean package",
        "*.test.js": "tap",
        "*.js": "node"
    }
}

可以看到 go 的执行命令默认配置成了go run, 并且默认执行当前打开的文件。 所以需要利用$dir这个变量run整个main包所涉及到的所有文件。并且可以正则匹配文件名。

查看一下go run这个命令的参数解释，由于众所周知的原因，我们只能上国内的 替代官网 。

Compile and run Go program Usage:

go run [build flags] [-exec xprog] package [arguments…] Run compiles and runs the named main Go package. Typically the package is specified as a list of .go source files, but it may also be an import path, file system path, or pattern matching a single known package, as in ‘go run .’ or ‘go run my/cmd’.

By default, ‘go run’ runs the compiled binary directly: ‘a.out arguments…’. If the -exec flag is given, ‘go run’ invokes the binary using xprog:

‘xprog a.out arguments…’. If the -exec flag is not given, GOOS or GOARCH is different from the system default, and a program named go $GOOS $GOARCH_exec can be found on the current search path, ‘go run’ invokes the binary using that program, for example ‘go_nacl_386_exec a.out arguments…‘. This allows execution of cross-compiled programs when a simulator or other execution method is available.

The exit status of Run is not the exit status of the compiled binary.

For more about build flags, see ‘go help build’. For more about specifying packages, see ‘go help packages’.

找到了，使用 go run . 来跑整个package的。

在VSCode的.vscode目录下创建settings.json文件

自定义这个project的用户配置如下

{
    "code-runner.executorMap": {
        "go": "cd $dir && go run .",
    },
    "code-runner.executorMapByGlob": {
        "$dir\\*.go": "go"
    }
}

点击Cdoe Runner在VSCode GUI界面提供的RUN按钮

[Running] cd "d:\Users\polar\go\src\mylab\" && go run .
in test

[Done] exited with code=0 in 3.564 seconds

OK!

当然也可以用VSCode Debug 的launch.json来配置，但是那个debug模式。并不是go run。