GDFZOJ返回列表

增加返回列表按钮

Du musst eine Erweiterung wie Tampermonkey, Greasemonkey oder Violentmonkey installieren, um dieses Skript zu installieren.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

Sie müssten eine Skript Manager Erweiterung installieren damit sie dieses Skript installieren können

(Ich habe schon ein Skript Manager, Lass mich es installieren!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         GDFZOJ返回列表
// @version      1.3
// @description  增加返回列表按钮
// @author       MlkMathew
// @match        *://*.gdfzoj.com*/*
// @grant        GM_setValue
// @grant        GM_getValue
// @namespace    https://greatest.deepsurf.us/users/1068192
// ==/UserScript==

(function() {
    'use strict';
    var webs=window.location.href,id='',str;
    function get_last_id(nam){
        var dig=1,res=0;
        for(let i=nam.length-1;i>=0;i--)
        {
            if(nam[i]=='/'){
                break;
            }
            res+=dig*(nam[i]-'0');
            dig*=10;
        }
        return res;
    }
    function get(pid,tim){
        if(tim>5){
            return ;
        }
        $.get("http://www.gdfzoj.com:23380/exercise/"+pid,function(res){
            console.clear();
            console.log('exercise',pid,'success to catch data');
            for(let i=0;i+6<res.length;i++)
            {
                if(res.substr(i,7)=='problem'){
                    var id='';
                    for(let j=i+8;j<res.length;j++)
                    {
                        if(res[j]=='"'){
                            break;
                        }
                        id+=res[j];
                    }
                    if(id==''){
                        continue;
                    }
                    GM_setValue(id,pid);
                }
            }
        }).fail(function () {
            get(pid,tim+1);
            console.clear();
            console.log('exercise',pid,'failed to catch data');
        });
    }
    function get_exercise(num){
        console.log('catch data number:',num);
        for(let i=1;i<=num;i++)
        {
            get(i,0);
        }
    }
    if(!webs.substr(7,webs.length-8).match('/')){
        let but=document.createElement("a");
        but.className="btn btn-primary btn";
        but.textContent="爬取题单";
        but.style.color="rgb(255,255,255)";
        document.querySelector("#UOJnavbars > ul:nth-child(2) > li.nav-item.dropdown").insertAdjacentElement("beforebegin",but);
        but.onclick=function(){
            let txt=document.createElement("a");
            txt.textContent="正在爬取数据中...";
            but.insertAdjacentElement("afterend",txt);
            setTimeout(()=>{
                get_exercise(500);
                console.clear();
                console.log("success to catch data");
                txt.remove();
            },100);
        }
        return ;
    }
    const s=document.querySelectorAll('a');
    if(webs.match('exercise')||webs.match('problems$')){
        for(let i=0;i<s.length;i++)
        {
            if(s[i].href.match('problem/')){
                GM_setValue(get_last_id(s[i].href),get_last_id(webs));
            }
        }
    }
    if(webs.match('problem/')&&(!webs.match('contest/'))){
        var x;
        const t=document.querySelectorAll('ul');
        for(let i=0;i<t.length;i++)
        {
            if(t[i].role=='tablist'){
                x=t[i];
            }
        }
        var add=document.createElement("li");
        add.className="nav-item";
        var y;
        for(let i=0;i<s.length;i++)
        {
            if(s[i].textContent==' 提交'){
                y=s[i].cloneNode(true);
            }
        }
        y.textContent=' 返回列表';
        y.dataset.toggle='';
        y.href="http://www.gdfzoj.com:23380/exercise/"+GM_getValue(get_last_id(webs)).toString();
        add.insertAdjacentElement("beforeend",y);
        x.insertAdjacentElement("beforeend",add);
    }
})();