js { "18900": [ { "memory": "8.65%", //内存 "hardDisk": "17.7%", //硬盘 "cpu": "19.42%", //cpu "time": "2023-05-15 16:10:00" //时间点 } ], //服务器端口 "19000": [ { "memory": "11.94%", "hardDisk": "14.4%", "cpu": "12.5%", "time": "2023-05-15 16:10:00" } ] } 这是怎么使用for循环 在不知道有多少端口情况下

你可以使用对象的`keys()`方法获取对象的所有属性名，然后使用`forEach()`方法对每个端口进行循环。具体代码如下：

const serverStatus = {
  "18900": [
    {
      "memory": "8.65%",
      "hardDisk": "17.7%",
      "cpu": "19.42%",
      "time": "2023-05-15 16:10:00"
    }
  ],
  "19000": [
    {
      "memory": "11.94%",
      "hardDisk": "14.4%",
      "cpu": "12.5%",
      "time": "2023-05-15 16:10:00"
    }
  ]
};

Object.keys(serverStatus).forEach(port => {
  console.log(`Port ${port}:`);
  serverStatus[port].forEach(status => {
    console.log(` Memory usage: ${status.memory}`);
    console.log(` Hard disk usage: ${status.hardDisk}`);
    console.log(` CPU usage: ${status.cpu}`);
    console.log(` Time: ${status.time}`);
  });
});

输出结果如下：

Port 18900:
 Memory usage: 8.65%
 Hard disk usage: 17.7%
 CPU usage: 19.42%
 Time: 2023-05-15 16:10:00
Port 19000:
 Memory usage: 11.94%
 Hard disk usage: 14.4%
 CPU usage: 12.5%
 Time: 2023-05-15 16:10:00