为啥显示undefined preference to std啊

Question

实在是不知道咋搞了，本人刚学但网上的基本上都是自己写的头文件，按照那个去创建啥taskd.json根本长的就不一样，根本没办法改。ddl马上就要到了出这个bug😢

Answer 1

{
  "version": "2.0.0",
  "tasks": [
    {
      "label": "g++",
      "command": "g++",
      "args": [
        "-g",
        "${file}",
        "-o",
        "${fileDirname}/${fileBasenameNoExtension}.exe"
      ],
      "problemMatcher": {
        "owner": "cpp",
        "fileLocation": ["relative", "${workspaceRoot}"],
        "pattern": {
          "regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
          "file": 1,
          "line": 2,
          "column": 3,
          "severity": 4,
          "message": 5
        }
      },
      "group": {
        "kind": "build",
        "isDefault": true
      }
    }
  ]
}