利用了golang对高并发的良好支持，同目录下将ip每行一个写入pinglist.txt文件即可

其实这个功能用linux一条命令就能搞定：

cat pinglist.txt | xargs -P 10 -I {} ping -fc 100 {}

package mainimport (    "bufio"    "bytes"    "fmt"    "io"    "io/ioutil"    "log"    "os"    "os/exec"    "strings"    "sync"    "runtime")func RunCMD(command string) string {    in := bytes.NewBuffer(nil)    cmd := exec.Command("sh")    cmd.Stdin = in    in.WriteString(command + "\n")    stdout, err := cmd.StdoutPipe()    if err != nil {        log.Fatal(err)    }    defer stdout.Close()    if err := cmd.Start(); err != nil {        log.Fatal(err)    }    opBytes, err := ioutil.ReadAll(stdout)    if err != nil {        log.Fatal(err)    }    return string(opBytes)}func ping(ip string) string {    cmd := "ping -fc 100 " + ip    return RunCMD(cmd)}var ips = []string{}func main() {    runtime.GOMAXPROCS(runtime.NumCPU())    fileName := "pinglist.txt"    f, err := os.Open(fileName)    if err != nil {        fmt.Println(err)    }    buf := bufio.NewReader(f)    for {        line, err := buf.ReadString('\n')        line = strings.TrimSpace(line)        if err != nil {            if err == io.EOF {                //fmt.Println("File read over!")                break            }            fmt.Println(err)        }        ips = append(ips, line)    }    wg := &sync.WaitGroup{}    ch := make(chan string, len(ips))    //fmt.Println(ips)    for i:= 0; i < len(ips); i++ {        wg.Add(1)        go func(i int) {            ch <- ping(ips[i])            wg.Done()        }(i)    }    wg.Wait()    //fmt.Println(len(ch))    for i := 0; i < len(ips); i++ {        fmt.Println(<-ch)    }}