Vscode调试出现无法打开“X”: 找不到文件或者报错preLaunchTask“g++”后存在错误

这是原来的task.json

{
    "version": "2.0.0",
    "command": "g++",
    "args": [
        "-g",
        "${file}",
        "-o",
        "${fileBasenameNoExtension}.exe"
    ], // 编译命令参数
    "problemMatcher": {
        "owner": "cpp",
        "fileLocation": [
            "relative",
            "${workspaceRoot}"
        ],
        "pattern": {
            "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
            "file": 1,
            "line": 2,
            "column": 3,
            "severity": 4,
            "message": 5
        }
    }
}

将"${workspaceRoot}"改为"\\"

{
    "version": "2.0.0",
    "command": "g++",
    "args": [
        "-g",
        "${file}",
        "-o",
        "${fileBasenameNoExtension}.exe"
    ], // 编译命令参数
    "problemMatcher": {
        "owner": "cpp",
        "fileLocation": [
            "relative",
            "\\"
        ],
        "pattern": {
            "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
            "file": 1,
            "line": 2,
            "column": 3,
            "severity": 4,
            "message": 5
        }
    }
}

改后就能成功调试了。