打卡判断，增加前端浏览器mac获取，当mac获取为空时不判断

LR-20210131IOQH\Administrator

2021-06-10 6f34ab1ed6f8cb79a012a30a7b687e362c6f16c2

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{
  "version": 1,
  "isRoot": true,
  "tools": {
    "dotnet-ef": {
      "version": "5.0.4",
      "commands": [
        "dotnet-ef"
      ]
    }
  }
}