golang 解析cvs文件

//用法:程序名+文件名

packagemain

import(

"encoding/csv"

"flag"

"fmt"

"io"

"log"

"os"

"strings"

)

funcmain(){

//参数

flag.Parse()

fmt.Println(flag.NArg())

ifflag.NArg() != 1 {

log.Printf("usage: command + filename")

return

}

//只取第1个参数做为文件名

file, err := os.Open(flag.Arg(0))

iferr != nil {

fmt.Println("Error:", err)

return

}

deferfile.Close()

reader := csv.NewReader(file)

reader.Comment = '#' //可以设置读入文件中的注释符

reader.Comma = ',' //默认是逗号,也可以自己设置

//还可以设置以下信息

//FieldsPerRecordint//Numberofexpectedfieldsperrecord

//LazyQuotesbool//Allowlazyquotes

//TrailingCommabool//Allowtrailingcomma

//TrimLeadingSpacebool//Trimleadingspace

//lineint

//columnint

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 //第一行是字段名,不需要

for{

record, err := reader.Read()

iferr == io.EOF {

break

}elseiferr != nil {

fmt.Println("Error:", err)

return

}

ifk > 0 { //record是[]strings, 怎样直接获得域值

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")

}

本文来自:CSDN博客

感谢作者:zistxym

查看原文:golang 解析cvs文件

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