func copys(dstFile, srcFile string) (int64, error) {
srcF,err := os.Open(srcFile)
if err != nil {
fmt.Println("open srcFile 出错",err)
return 0, nil
}
defer srcF.Close()
reader := bufio.NewReader(srcF)
dstF,err1 := os.OpenFile(dstFile,os.O_WRONLY|os.O_CREATE,0666)
if err1 != nil {
fmt.Println("open dstFile 出错",err)
return 0, nil
}
weitr := bufio.NewWriter(dstF)
defer dstF.Close()
return io.Copy(weitr,reader)
}