utils.go

package main

import (
	"fmt"
	"os"
	"os/exec"
	"strconv"
	"strings"
	"syscall"
)

func isProcessExist(appName string) (bool, string, int) {
	appary := make(map[string]int)
	cmd := exec.Command("cmd", "/C", "tasklist")
	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
	output, _ := cmd.Output()
	//fmt.Printf("fields: %v\n", output)
	n := strings.Index(string(output), "System")
	if n == -1 {
		fmt.Println("no find")
		os.Exit(1)
	}
	data := string(output)[n:]
	fields := strings.Fields(data)
	for k, v := range fields {
		if v == appName {
			appary[appName], _ = strconv.Atoi(fields[k+1])

			return true, appName, appary[appName]
		}
	}

	return false, appName, -1
}

//IsExists 检测文件是否存在
func IsExists(path string) (bool, error) {

	_, err := os.Stat(path)
	if err == nil {
		return true, nil
	}
	if os.IsNotExist(err) {
		return false, nil
	}
	return false, err
}