一、获取当前进程时间信息

import (
	"syscall"
	"fmt"
)

var (
		creationTime syscall.Filetime
		exitTime     syscall.Filetime
		kernelTime   syscall.Filetime
		userTime     syscall.Filetime
	)

	h, err := syscall.GetCurrentProcess()
	if err != nil {
		fmt.Println(err)
		return
	}

	err = syscall.GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Printf("CreationTime: %v\nExitTime: %v\nKernelTime: %v\nUserTime: %v\n", creationTime.Nanoseconds(), exitTime.Nanoseconds(), kernelTime.Nanoseconds(), userTime.Nanoseconds())

二、获取进程id

import (
	"fmt"
	"strings"
	"syscall"
	"time"

	"github.com/shirou/gopsutil/process"
)
// 获取当前进程pid
pid := syscall.Getpid()
fmt.Println("mypid:", pid)
// 获取系统所有进程id
pids, _ := process.Pids()
for _, pid := range pids {
	// 根据进程id实例化每个进程
	pn, _ := process.NewProcess(pid)
	pName, _ := pn.Name()
	// 过滤进程名为main.exe的进程信息
	if 0 != strings.Compare(pName, "main.exe") {
		continue
	}
	// 获取进程所在路径
	_, _ = pn.Cwd()
	h, err := syscall.OpenProcess(syscall.STANDARD_RIGHTS_REQUIRED|syscall.SYNCHRONIZE|0xfff, 	false, uint32(pid))
	if err != nil {
		fmt.Println(err)
		return
	}
	defer syscall.CloseHandle(h)
	err = syscall.GetProcessTimes(h, &creationTime, &exitTime, &kernelTime, &userTime)
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println("pid:", pid, ",milliseconds:", creationTime.Nanoseconds()/1000000)
}
_, err = process.Processes()
if err != nil {
	fmt.Println(err.Error())
	return
}