刚开始我是想让vscode用外部控制台程序输出，在网上搜把launch.json文件里的某个参数改为true，然后它说要编译，然后也按它的指示安装了那个已经停止维护的插件，还是编译不了。最后，我还是想知道vscode如何输出结果到外部控制台程序。

就是搜的这个，设置了，刚开始没开管理员账号更新失败，然后开了，没用，然后说改了之后还要编译，但vscode编译不了json文件。

我点击运行和调试它上面有两个提示：C++(GDB/LLDB)，C++(Windows)。点第一个它又三个提示：C/C++：g++.exe生成调试活动文件，C/C++：cpp.exe生成调试活动文件，C/C++：gcc.exe生成调试活动文件。下面两个都错误提示和launch.json有关。点第一个还是在自带终端里，没有外部控制台程序。

{
    "version": "2.0.0",
    "command": "grunt",
    "tasks": [
        {
            "label": "test",
            "type": "grunt",
            "task": "test",
            "problemMatcher": [],
            "group": {
                "_id": "test",
                "isDefault": false
            }
        },
        {
            "label": "peg",
            "type": "grunt",
            "task": "peg",
            "problemMatcher": [],
            "group": {
                "_id": "build",
                "isDefault": false
            }
        },
        {
            "type": "cppbuild",
            "label": "C/C++: cpp.exe 生成活动文件",
            "command": "C:\\Users\\Hasee\\Downloads\\mingw64\\bin\\cpp.exe",
            "args": [
                "-fdiagnostics-color=always",
                "-g",
                "${file}",
                "-o",
                "${fileDirname}\\${fileBasenameNoExtension}.exe"
            ],
            "options": {
                "cwd": "${fileDirname}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build",
            "detail": "编译器: C:\\Users\\Hasee\\Downloads\\mingw64\\bin\\cpp.exe"
        }
    ]
}
这个是tasks里的。
{
    "version": "0.2.0",
    "configurations": [
        {
            "preLaunchTask": "peg",
            "name": "Launch",
            "type": "node",
            "request": "launch",
            "program": "${workspaceRoot}/test/cmake-format.js",
            "stopOnEntry": false,
            "args": ["test/CMakeLists.txt"],
            "cwd": "${workspaceRoot}",
            "runtimeExecutable": null,
            "runtimeArgs": [
                "--nolazy"
            ],
            "env": {
                "NODE_ENV": "development"
            },
            "externalConsole": true,
            "sourceMaps": false,
            "outDir": null
        },
        {
            "name": "Attach",
            "type": "node",
            "request": "attach",
            "port": 5858
        }
    ]
}
这个是launch里的。改了，好像还是没变化。