【樹莓派】C# .net core 3.0 獲取CPU溫度和內存使用率

話不多說，上C#代碼

using System;
using System.Linq;
namespace ConsoleApp3
{
    class Program
    {
        static void Main(string[] args)
        {

            Console.WriteLine($@"當前溫度:{GetCpuTemperature()}°");
            Console.WriteLine($@"總共內存:{GetMemoryUseStatus(0)} MB");
            Console.WriteLine($@"已經使用:{GetMemoryUseStatus(1)} MB");
            Console.WriteLine($@"還未使用:{GetMemoryUseStatus(2)} MB");

        }

        /// <summary>
        /// 獲取樹莓派CPU溫度
        /// </summary>
        /// <returns></returns>
        public static float GetCpuTemperature() {
            return float.Parse(System.IO.File.ReadAllText(@"/sys/class/thermal/thermal_zone0/temp")) / 1000;
        }

        /// <summary>
        /// 獲取樹莓派內存使用情況
        /// </summary>
        /// <param name="info"></param>
        /// <returns></returns>
        public static int GetMemoryUseStatus(int info) {
            string meminfo = System.IO.File.ReadAllText(@"/proc/meminfo");
//給出一段參考，實際情況可以刪掉
/*string meminfo =
@"MemTotal:         765604 kB
MemFree:          329032 kB
MemAvailable:     498452 kB
Buffers:           23168 kB
Cached:           200980 kB
SwapCached:            0 kB
Active:           249832 kB
Inactive:         112576 kB
Active(anon):     138644 kB
Inactive(anon):    17800 kB
Active(file):     111188 kB
Inactive(file):    94776 kB
Unevictable:          16 kB
Mlocked:              16 kB
SwapTotal:        102396 kB
SwapFree:         102396 kB
Dirty:               132 kB
Writeback:             0 kB
AnonPages:        138280 kB
Mapped:           109408 kB
Shmem:             18180 kB
Slab:              49476 kB
SReclaimable:      16864 kB
SUnreclaim:        32612 kB
KernelStack:        2200 kB
PageTables:         6312 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:      485196 kB
Committed_AS:    1356796 kB
VmallocTotal:    1294336 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
Percpu:              656 kB
CmaTotal:           8192 kB
CmaFree:            6028 kB";*/
            var memory = meminfo.Split(' ').Where(o => o != string.Empty).ToList();            
            return int.Parse(memory[info * 2 + 1])/1024;//返回MB
        }

    }
}

效果如下

 

總結，linux的這個“一切都是文件”這個設計是真的爽！