go 正则 爬取邮箱代码

package main

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

var url string = "https://tieba.baidu.com/p/5518324938?red_tag=1795043739"
var reEmail = `(\d+)@qq.com`
func main()  {

	resp, err := http.Get(url)
	handError(err)

	defer resp.Body.Close()

	bytesContent, err := ioutil.ReadAll(resp.Body)

	handError(err)

	getEmail(string(bytesContent))

}

// 处理错误
func handError(err error)  {
	//fmt.Println(err)
	if err != nil{
		fmt.Println(err)
	}

}

// 获取邮箱 qq邮箱 使用正则
func getEmail(content string)  {
	re := regexp.MustCompile(reEmail)
	list := re.FindAllStringSubmatch(content, -1)

	var result []string

	for _,v := range list {
		if v != nil{
			result = append(result,v[0])
		}

	}
	fmt.Println(result)

}

　　

结果

GOROOT=/usr/local/go #gosetup
GOPATH=/www/gopath #gosetup
/usr/local/go/bin/go build -i -o /private/var/folders/fc/4txmmczj6q92p6058h3w7t_80000gn/T/___go_build_main_go /www/gopath/src/wang/main.go #gosetup
/private/var/folders/fc/4txmmczj6q92p6058h3w7t_80000gn/T/___go_build_main_go #gosetup
[3304778804@qq.com 742948861@qq.com 1261766424@qq.com 2903927557@qq.com 973327005@qq.com 973327005@qq.com 51061804@qq.com 3154089413@qq.com 2501667505@qq.com 1733510262@qq.com 289207537@qq.com 11886843@qq.com 1069016912@qq.com 765730856@qq.com 643074575@qq.com 330256148@qq.com 2025643306@qq.com 1903987556@qq.com 136772698@qq.com 990242520@qq.com 876958445@qq.com 776283765@qq.com 184756372@qq.com 2580145919@qq.com 710830708@qq.com 459618331@qq.com 964974049@qq.com 1499820286@qq.com 1822036045@qq.com 29522755@qq.com 1903987556@qq.com 2444694413@qq.com]

Process finished with exit code 0

package main

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

var url string = "https://tieba.baidu.com/p/5934645800"
var reQQEmail = `(\d+)@qq.com`
var reEmail = `\w+@\w+\.\w+`
func main()  {

	content := getPageString(url)
	res1 := getEmail(content,reEmail)
	res2 := getEmail(content,reQQEmail)

	fmt.Println("一共找到邮箱",len(res1))
	fmt.Println("一共找到邮箱",len(res2))

}

// 处理错误
func handError(err error)  {
	//fmt.Println(err)
	if err != nil{
		fmt.Println(err)
	}

}

// 获取邮箱 qq邮箱 使用正则
func getEmail(content string,reg string) []string {
	re := regexp.MustCompile(reg)
	list := re.FindAllStringSubmatch(content, -1)

	var result []string

	for _,v := range list {
		if v != nil{
			result = append(result,v[0])
		}

	}
	return result

}

func getPageString(url string)  string {
	resp, err := http.Get(url)
	handError(err)

	defer resp.Body.Close()

	bytesContent, err := ioutil.ReadAll(resp.Body)

	handError(err)
	return string(bytesContent)
}