图片下载存储
import (
"bytes"
"io"
"io/ioutil"
"log"
"net/http"
"os"
)
func main() {
resp, err := http.Get("http://1.png")
if err != nil {
log.Println(err)
return
}
body, _ := ioutil.ReadAll(resp.Body)
out, _ := os.Create("./download/2.png")
io.Copy(out, bytes.NewReader(body))
}
重写time json格式
import "time"
type Time time.Time
const (
timeFormart = "2006-01-02 15:04:05"
)
func (t *Time) UnmarshalJSON(data []byte) (err error) {
now, err := time.ParseInLocation(`"`+timeFormart+`"`, string(data), time.Local)
*t = Time(now)
return
}
func (t Time) MarshalJSON() ([]byte, error) {
b := make([]byte, 0, len(timeFormart)+2)
b = append(b, '"')
b = time.Time(t).AppendFormat(b, timeFormart)
b = append(b, '"')
return b, nil
}
func (t Time) String() string {
return time.Time(t).Format(timeFormart)
}
CSV文件解析
opencast, err := os.Open(filepath)
if err != nil {
log.Println("csv文件打开失败!")
}
defer opencast.Close()
//创建csv读取接口实例
ReadCsv := csv.NewReader(bufio.NewReader(opencast))
ReadCsv.LazyQuotes = true
ReadCsv.FieldsPerRecord = -1
orders := list.New()
rowIndex := 0
for {
read, err := ReadCsv.Read()
if err != nil {
break
}
log.Println(iconv.ConvertString(read[0], "gb2312", "utf-8"))
}
转载请注明:我的经验分享 » GOLANG代码片段集锦