Tampermonkey 油猴脚本例子

// ==UserScript==
// @name         提取天猫SKU
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       丛兴龙
// @match        https://detail.tmall.com/item.htm?*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    console.info("脚本启动 提取天猫SKU")
    function init(){
        //获取body
        let vbody = document.getElementsByTagName('body')[0]
        //插入按钮
        let vdiv = document.createElement('div')
        vdiv.setAttribute('id','mydiv')
        //vdiv.setAttribute('class','col-sm-12')
        //vbody.appendChild(vdiv)
        document.querySelector("div").appendChild(vdiv)
        vdiv.innerHTML += '  '
        vdiv.innerHTML += '<button onclick="document.myscript_f1()" type="button" style="width: 100%;height: 50px; z-index: 1000;">提取SKU</button>'
        console.info("插入按钮 完成")
        //插入消息框
        let vmsg = document.createElement('div')
        vmsg.setAttribute('id','mymsg')
        //vmsg.setAttribute('style','background-color: #fff; width: 100%; padding:5px; padding-left:50px; ')
        document.querySelector("div").appendChild(vmsg)
        vmsg.innerHTML = ''
        console.info("插入消息框 完成")
        //插入自定义方法
        document.myscript_f1 = function(){
            let vscripts = document.getElementsByTagName('script')
            //console.info('total',vscripts.length)
            for(let i = 0;i<vscripts.length;i++){
                let content = vscripts[i].innerHTML
                if (content.indexOf('skuList')>0){
                    //console.info(i)
                    let skuListStr = content.match(/skuList[\s\S]*?(\[[\s\S]*?\])/)[1]
                    //console.info("skuListStr",skuListStr)
                    let skuList = JSON.parse(skuListStr)
                    console.info("skuList",skuList)

                    let skuMapStr = content.match(/skuMap[\s\S]*?(\{[\s\S]*?\}\})/)[1]
                    //console.info("skuMapStr",skuMapStr)
                    let skuMap = JSON.parse(skuMapStr)
                    console.info("skuMap",skuMap)

                    let result = []

                    let skus = document.getElementsByClassName('tm-sale-prop')
                    console.info('skus',skus)
                    for (let i=0;i<skus.length;i++){
                        let sku = skus[i]
                        console.info('sku',sku)
                        let items = sku.getElementsByTagName('li')
                        for (let j=0;j<items.length;j++){
                            let item = items[j]
                            let c = item.getAttribute('class')
                            if ( c && c.indexOf("tb-out-of-stock")>=0){
                                continue
                            }
                            if ( c && c.indexOf("tb-selected")>=0){
                            }
                            else{
                                item.getElementsByTagName('a')[0].click()
                            }
                            console.info('item',item)
                            let prices = document.getElementsByClassName('tm-price')
                            let price = 0
                            for (let i = 0 ;i < prices.length;i++){
                                price = prices[i].innerText
                            }
                            let title = item.getAttribute('title')
                            if (title){
                                result.push({'title':title,'price':price})
                            }
                        }
                    }

                    result = result.sort(function(a,b){
                        return a.price - b.price
                        })
                    //console.info(result)
                    let msg = ''
                    for(let j =0;j<result.length;j++)
                    {
                        msg += '<p style="background-color: rgba(255,255,255,0.7); width:50%; height:20px; padding-left:50px">'
                        msg += '<span>'
                        msg += j+1
                        msg += '</span>'
                        msg += '<span> '
                        msg += result[j].price
                        msg += ' </span>'
                        msg += '<span> '
                        msg += result[j].title
                        msg += ' </span>'
                        msg += '</p>'
                    }
                    //console.info(msg)
                    document.myscript_showMsg(msg)
                }
            }
        }

        //以文件形式下载内容
        document.myscript_download=function(content, fileName){
            let downLink = document.createElement('a')
            downLink.download = fileName
            //字符内容转换为blod地址
            let blob = new Blob([content])
            downLink.href = URL.createObjectURL(blob)
            // 链接插入到页面
            document.body.appendChild(downLink)
            downLink.click()
            // 移除下载链接
            document.body.removeChild(downLink)
        }
        document.myscript_showMsg=function(msg){
            let vmsg = document.getElementById('mymsg')
            vmsg.innerHTML = msg
        }
    };



    init();
})();