Question

golang的新手。试图按照sample code创建以下代码片段，但我不断收到编译错误。不知道为什么。

go run te2.go 
# command-line-arguments
./te2.go:36: syntax error: unexpected semicolon or newline, expecting comma or }

以下是代码段

package main

import "fmt"
import "bufio"
import "os"
import "time"
import "net/http"
import "sync/atomic"

var req = []byte("GET /small HTTP/1.1\r\n" +
"Host: localhost\r\n" +
"Content-Length: 0\r\n\r\n");
var buf = make([]byte, 1024)
var total uint64 = 0;
var t0 = time.Now()
var c = make(chan int)

type DialerFunc func(net, addr string) (net.Conn, error)

func make_dialer(keepAlive bool) DialerFunc {
    return func(network, addr string) (net.Conn, error) {
        conn, err := (&net.Dialer{
            Timeout:   3 * time.Second,
            KeepAlive: 3000 * time.Second,
        }).Dial(network, addr)
        if err != nil {
            return conn, err
        }
        conn.(*net.TCPConn).SetLinger(0)
        return conn, err
    }
}

func httpGet ()  int {
    tr := &http.Transport{
        Dial: make_dialer(false)
    }
    client := &http.Client{ Transport: tr}
    resp, err := client.Do(req)
    //defer resp.Body.Close()
    if (err != nil) {
        fmt.Println(err)
    } else {
        resp.Body.Close()
    }
    atomic.AddUint64(&total, 1)
    if (total == 10000) {
        fmt.Println(time.Now().Sub(t0))
    }
    c <- 1
    return 0;
}

func main() {
    i := 1
    t0 = time.Now()
    for (i < 10) {
        go httpGet()
        i += 1
    }
    for (1 < 2) {
        <-c
        go httpGet()
    }
    reader := bufio.NewReader(os.Stdin)
    text, _ := reader.ReadString('\n')
    fmt.Println(text)   
}

Answer 1

正如错误所说，你犯了语法错误更具体地说，你忘了把逗号放在第36行：

...
func httpGet ()  int {
    tr := &http.Transport{
        Dial: make_dialer(false), // <-- comma
    }
...

配置http客户端时不断出现编译错误

1 个答案: