golang 简单爬虫，245行代码爬取豆瓣电影电视剧等信息并保存到excel

package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"github.com/PuerkitoBio/goquery"
	"github.com/golang/glog"
	"github.com/tealeg/xlsx"
	"io/ioutil"
	"math/rand"
	"net/http"
	"strings"
	"time"
)

type movie struct {
	Directors []string `json:"directors"`
	Rate      string   `json:"rate"`
	Rover_x   int      `json:"cover_x"`
	Star      string   `json:"star"`
	Title     string   `json:"title"`
	Url       string   `json:"url"`
	Casts     []string `json:"casts"`
	Cover     string   `json:"cover"`
	Id        string   `json:"id"`
	Cover_y   int      `json:"cover_y"`
}

type data struct {
	Data []movie `json:"data"`
}

var (
	file *xlsx.File
	//爬到的影片总数
	number   int
	filePath string = "C:\\Users\\Administrator\\Desktop\\豆瓣.xlsx"

	//影视评分
	Score = flag.Float64("score", 0, "score")
	//分页
	Page = flag.Int("page", 0, "page")
	//影视类型
	Type = flag.String("type", "电影", "type")
)

func getAndParseHtml(movieUrl string) error {

	doc, err := goquery.NewDocument(mo