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"))  
        }  
    }