Go语言爬取网站磁力链接

package main

import (  
    "bufio"  
    "fmt"  
    "io"  
    "io/ioutil"  
    "net/http"  
    "os"  
    "regexp"  
    "strconv"  
    "strings"  
    "time"  
)  

func main() {  
    fmt.Print("输入要查询的字符：")  
    reader := bufio.NewReader(os.Stdin)  
    input, _ := reader.ReadBytes('\n')  
    x := string(input[0 : len(input)-2])  
    const url, page string = "http://www.btcherry.com/search?keyword=", "&p="  
    var Find string  
    FileResult, _ := os.OpenFile("re.txt", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 777)  
    defer func() {  
        time.Sleep(1e9 * 2)  
        FileResult.Sync()  
        FileResult.Close()  
    }()  

    for i := 1; i < 101; i++ {  
        Find = url + x + page + strconv.Itoa(i)  
        h := strings.Repeat("#", i/2) + strings.Repeat(" ", 50-i/2)  
        fmt.Printf("\r%02d%%[%s]", i, h)  
        time.Sleep(1e6 * 5)  
        go Resolve(Find, FileResult)  
    }  
}  

func Resolve(Find string, FileResult io.Writer) {  
    Re0, _ := regexp.Compile("<h5.*h5>")  
    Re1, _ := regexp.Compile(`^<h5 class="h" name="rsrc"`)  
    Re2, _ := regexp.Compile("<span class='highlight'>")  
    Re3, _ := regexp.Compile("</span")  
    Re4, _ := regexp.Compile("</h5>")  
    Re5, _ := regexp.Compile(">")  
    Re6, _ := regexp.Compile(`data-hash="`)  
    Resp, err := http.Get(Find)  
    if err != nil {  
        fmt.Println(err)  
    }  
    Buf, _ := ioutil.ReadAll(Resp.Body)  
    buf := Re0.FindAll(Buf, 1000)  
    for _, line := range buf {  
        line = Re1.ReplaceAll(line, []byte(""))  
        line = Re2.ReplaceAll(line, []byte(""))  
        line = Re3.ReplaceAll(line, []byte(""))  
        line = Re4.ReplaceAll(line, []byte(""))  
        line = Re5.ReplaceAll(line, []byte(""))  
        line = Re6.ReplaceAll(line, []byte("magnet:?xt=urn:btih:"))  
        FileResult.Write(line)  
        FileResult.Write([]byte("\n"))  
    }  
}  </pre>