Golang parsing CVS files

This is a creation in Article, where the information may have evolved or changed. //This program is designed to automatically animate real-time effects according to the contents of CVS, the seventh column is the last value

Usage:  program name + file name

Packagemain

Import(

  "Encoding/csv"

  "Flag"

  "FMT"

  "io"

  "Log"

  "OS"

  "strings"

)

FuncMain (){

  //Parameters

  flag. Parse ()

  FMT. PRINTLN (flag. Narg ())

  ifflag. Narg ()! = 1 {

  Log. Printf ("Usage:command + filename")

  return

    }

  //Take the 1th parameter as a filename

  file, err: = OS. Open (flag. ARG (0))

  iferr! = Nil {

  FMT. Println ("Error:", err)

  return

    }

  deferfile. Close ()

  Reader: = csv. Newreader (file)

  reader.comment = ' # '//can set the annotation in the read file

  reader.comma = ', '//default is a comma, you can also set your own

  //You can also set the following information

      // Fieldsperrecord    int    //   number    of    expected    fields    per    record  

      // Lazyquotes    bool    //   allow    lazy    quotes  

      // Trailingcomma    bool    //   allow    trailing  Span style= "font-size:18px" >  comma  

  //trimleadingspace bool/  /Trim Leading  Space

  //line int             

  //column int           

  fout, err: = OS. OpenFile ("OUT.txt", OS. O_rdwr|os. O_append|os. O_create, 0666)

  iferr! = Nil {

  FMT. Println ("Error:", err)

  return

    }

  deferfout. Close ()

  Content: = ""

  k: = 0//The first row is a field name and does not require

   for{

  record, err: = Reader. Read ()

  iferr = = Io. EOF {

   break

  } else iferr! =Nil {

  FMT. Println ("Error:", err)

  return

        }

  ifk > 0 {//record is []strings, how to get the domain value directly

 for _, V: = Range Record { 

  tmp: = strings. Split (V, "|")

                //fmt. Print ("<" + Tmp[1] + ">" + Tmp[7] + "</" + Tmp[1] + ">")

  content = content + "<" + tmp[1] + ">" + tmp[7 "+" </"+ tmp[1] +" > "

            }

        }

  k = k + 1

    }

  FMT. Printf ("\ n")

  Fout. WriteString (content + "\ n")

  FMT. Printf ("\ n")

}