Golang html encoding解析

自動解析html頁面的編碼格式：

需要依賴 golang.org/x/text 和 golang.org/x/net 這兩個外部庫

package mainimport (    "net/http"    "io/ioutil"    "fmt"    "golang.org/x/text/transform"    "io"    "golang.org/x/text/encoding"    "bufio"    "golang.org/x/net/html/charset")// encoding determine for html page , eg: gbk gb2312 GB18030func determineEncoding(r io.Reader) encoding.Encoding {    bytes, err := bufio.NewReader(r).Peek(1024)    if err != nil {        panic(err)    }    e, _, _ := charset.DetermineEncoding(bytes, "")    return e}func main() {    resp, err := http.Get("http://www.zhenai.com/zhenghun")    if err != nil {        panic(err)    }    defer resp.Body.Close()    e := determineEncoding(resp.Body)    reader := transform.NewReader(resp.Body, e.NewDecoder())    if resp.StatusCode == http.StatusOK {        bodyBytes, err := ioutil.ReadAll(reader)        if err != nil {            panic(err)        }        fmt.Printf("%s\n", bodyBytes)    }}