package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
	"regexp"
)

// var rePhone string = `1[3456789]\d{9}`
var rePhone string = `1[3,5,8]\d{9}`

// var reEmail string = `[1-9]\d{4,}@qq.com`
var reEmail string = `\w+@\w+\.\w+`

//GetPhoneNum 从网页中拿到所有的手机号
func GetPhoneNum(url string) []string {
	html := GetHTML(url)
	re := regexp.MustCompile(rePhone)
	phoneNums := re.FindAllString(html, -1)
	for i, v := range phoneNums {
		fmt.Printf("第%d个手机号是%s\n", i+1, v)
	}
	return phoneNums
}

//GetEmail 从网页中拿到所有的邮箱号
func GetEmail(url string) [][]string {
	html := GetHTML(url)
	re := regexp.MustCompile(reEmail)
	emails := re.FindAllStringSubmatch(html, -1)
	for i, v := range emails {
		fmt.Printf("第%d个邮箱是%s\n", i+1, v)
	}
	return emails
}

//GetHTML 拿到指定地址的html文件
func GetHTML(url string) string {
	resp, err := http.Get(url)
	if err != nil {
		return ""
	}
	bytes, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return ""
	}
	return string(bytes)
}
func main() {
	url := "http://www.baishicha.com/xinyang-yidong/"
	GetPhoneNum(url)

	// url := "http://blog.sina.com.cn/s/blog_147f99d5d0102vmyv.html"
	// GetEmail(url)

	// url := "http://blog.sina.com.cn/s/blog_147f99d5d0102vmyv.html"
	// html := GetHtml(url)
	// fmt.Println(html)

}