C#中读取硬件温度的3种方法对比

// 核心代码示例
using OpenHardwareMonitor.Hardware;

namespace HardwareMonitorDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            Computer computer = new Computer
            {
                CPUEnabled = true,      // 启用CPU监控
                HDDEnabled = true,      // 启用硬盘监控
                RAMEnabled = true       // 注意：大多数内存无温度传感器
            };

            computer.Open(); // 初始化硬件访问
            
            foreach (var hardware in computer.Hardware)
            {
                hardware.Update(); // 更新传感器数据
                foreach (var sensor in hardware.Sensors)
                {
                    if (sensor.SensorType == SensorType.Temperature)
                    {
                        Console.WriteLine($"{hardware.Name} - {sensor.Name}: {sensor.Value}°C");
                    }
                }
            }
            
            computer.Close(); // 释放资源
        }
    }
}

// WMI方式获取CPU温度
using System.Management;

public static void GetCPUTemp()
{
    ManagementObjectSearcher searcher = 
        new ManagementObjectSearcher("root\\WMI", 
                                    "select * from MSAcpi_ThermalZoneTemperature");
    
    foreach (ManagementObject obj in searcher.Get())
    {
        uint temp = Convert.ToUInt32(obj["CurrentTemperature"]);
        float celsius = (temp - 2732) / 10.0f; // 转换公式
        Console.WriteLine($"CPU温度：{celsius}°C");
    }
}

// WinIo方式示例（需安装驱动）
[DllImport("winio.dll")]
private static extern int Inp32(short PortAddress);

public static void ReadSensor()
{
    short port = 0x295; // 假设的传感器端口
    byte data = Inp32(port); // 直接读取硬件端口
    Console.WriteLine($"原始传感器数据：{data}");
}

if (cpuTemp > 80) 
    Console.WriteLine("⚠️ CPU温度过高！");

File.AppendAllText("temp.log", 
                  $"{DateTime.Now} - {cpuTemp}°C\n");