在task.json中设置环境变量

Question

我尝试为将在Windows子系统Linux中运行的Visual Studio Code任务设置环境变量。然而，它似乎不起作用。这是我的tasks.json：

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "test env",
            "type": "shell",
            "command": "echo",
            "args": [
                "$test"
            ],
            "options": {
                "env": {
                    "test": "test_string"
                }
            }

        },
    ]
}

输出为：

> Executing task in folder ex12-test: echo $test <



Terminal will be reused by tasks, press any key to close it.

请注意，默认情况下，shell已被手动修改为WSL的C：\WINDOWS\SysNative\bash.exe，正如这里和这里推荐的那样。

Answer 1

选项对象超出任何任务的范围，因此：

format
  "version": "2.0.0",
  "options": {
      "env": {
        "test": "test_string"
      }
   }
   "tasks": [
    {
        "label": "test env",
        "type": "shell",
        "command": "echo",
        "args": [
            "$env:test"
        ],
    },

然后访问选项参数，如下所示：

$env:test  or    ${env:test}
]