GYXTW

krusteniskais kabelis ir viena no eterneta kabeļu veidu. Šis kabelis ...">

，需要通过父级DOM结构来判断 */ var trackActionPhone = function (node) { var nodeInnerText = node.innerText || ''; if (!limitRegLength(nodeInnerText)) return; var nodeText = trimText(nodeInnerText); if (nodeText.length < 5 || nodeText.length > 20) return false; var type = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'click'; var str = trimText(node.href || node.innerHTML || ''); if (phoneReg.test(str) && numUseReg.test(str)) { window.postMessage({ type: 'SHOPS_CONTACT_TRACK', data: { phone: nodeText, }, }, '*'); _paq.push(['trackEvent', type, 'phone', nodeText]); return true; } /** 排查父级嵌套非标签场景，并且对dom的正则校验做一个性能兜底，通过控制innerText的长度，来确保正则的性能 */ var fatherText = trimText(node.parentNode.innerText || ''); if (fatherText.length < 5 || fatherText.length > 20) return false; var fatherDom = trimText(node.parentNode.innerHTML || ''); if (phoneReg.test(fatherDom) && numUseReg.test(fatherDom)) { window.postMessage({ type: 'SHOPS_CONTACT_TRACK', data: { phone: nodeText, }, }, '*'); _paq.push(['trackEvent', type, 'phone', nodeText]); return true; } return false; }; window.addEventListener('click', function (e) { var node = e.target; /** 社媒点击 */ var appName = ''; var getAppAriaLabel = node.ariaLabel || node.parentNode.ariaLabel || ''; if (mediaList.includes(getAppAriaLabel.toLowerCase())) { appName = getAppAriaLabel; } if ( !appName && node.nodeName && node.nodeName.toLowerCase() === 'a' ) { appName = getMediaName(node.href) || getMediaName(node.alt); } if ( !appName && node.nodeName && node.nodeName.toLowerCase() === 'img' ) { appName = getMediaName(node.alt) || getMediaName(node.src); } if ( !appName && node.nodeName && node.nodeName.toLowerCase() === 'i' ) { appName = getMediaName(node.className); } if (appName) { _paq.push(['trackEvent', 'click', 'contactApp', appName]); return; } /** 联系方式点击 */ if (trackActionPhone(node, 'click')) return; if (node.nodeName && node.nodeName.toLowerCase() === 'a') { var val = node.href; if (!limitRegLength(val)) return; if (emailReg.test(val)) { window.postMessage({ type: 'SHOPS_CONTACT_TRACK', data: { email: val, }, }, '*'); _paq.push(['trackEvent', 'click', 'email', val]); return; } } if (node.nodeName && node.nodeName.toLowerCase() === 'i') { var val = node.className; var content = node.parentNode.href || ''; if (val.includes('email')) { window.postMessage({ type: 'SHOPS_CONTACT_TRACK', data: { email: content, }, }, '*'); _paq.push(['trackEvent', 'click', 'email', content]); return; } } var nodeChildList = node.childNodes; for (var i = 0; i < nodeChildList.length; i++) { if (nodeChildList[i].nodeType !== 3) continue; var val = nodeChildList[i].textContent.replace(/\s?:?/g, ''); if (!limitRegLength(val)) continue; if (emailReg.test(val)) { window.postMessage({ type: 'SHOPS_CONTACT_TRACK', data: { email: val, }, }, '*'); _paq.push(['trackEvent', 'click', 'email', val]); return; } } trackNumberData(node); }); window.addEventListener('copy', function (e) { if (trackActionPhone(e.target, 'copy')) return; var text = e.target.textContent; if (!text) return; var val = text.replace(/\s:?/g, ''); if (!limitRegLength(val)) return; if (emailReg.test(val)) { window.postMessage({ type: 'SHOPS_CONTACT_TRACK', data: { email: val, }, }, '*'); _paq.push(['trackEvent', 'copy', 'email', val]); return; } trackNumberData(e.target); }); } trackContactInit(); /** * 基于custom_inquiry_form.js 以及 form.js 对于询盘表单提交的实现，来反推询盘表单的input标签触发，用来收集意向客户 * 1. 缓存的KEY：TRACK_INPUT_ID_MTM_00； * 2. 缓存策略 - lockTrackInput：单个页面内，10分钟内，不重复上报 */ function trackActionInput() { const CACHE_KEY = 'TRACK_INPUT_ID_MTM_00'; const pathName = window.location.hostname + window.location.pathname; var lockTrackInput = function () { try { const lastCacheData = localStorage.getItem(CACHE_KEY); if (!lastCacheData) return false; const cacheData = JSON.parse(lastCacheData); const cacheTime = cacheData[pathName]; if (!cacheTime) return false; return Date.now() - cacheTime < 1000 * 60 * 10; // 10分钟内，不重复上报 } catch (error) { console.error('lockTrackInput Error', error); return false; } }; var setInputTrackId = function () { try { const curCacheData = localStorage.getItem(CACHE_KEY); if (curCacheData) { const cacheData = JSON.parse(curCacheData); cacheData[pathName] = Date.now(); localStorage.setItem(CACHE_KEY, JSON.stringify(cacheData)); return; } const cacheData = { [pathName]: Date.now(), }; localStorage.setItem(CACHE_KEY, JSON.stringify(cacheData)); } catch (error) { console.error('setInputTrackId Error', error); } }; var getInputDom = function (initDom) { var ele = initDom; while (ele) { /** * isWebSiteForm 是站点的表单 * isChatWindowForm 是聊天窗口的表单 */ /** 旧模板表单 */ var isWebSiteForm = !!( /crm-form/i.test(ele.className) && ele.querySelector('form') ); /** 1：新模板自定义表单、2：Get a Quote 弹框表单 */ var isWebSiteFormNew = !!( /inquiry/i.test(ele.className) && ele.querySelector('form') ); if (isWebSiteForm || isWebSiteFormNew) { _paq.push(['trackEvent', 'formInquiry', 'formInput', 'page']); setInputTrackId(); return; } /** Mkt会话触达-聊天弹框的表单输入: MKT由于是iframe嵌入，所以MKT的上报，会单独写到MKT-form代码上 */ var isInquiryChatForm = !!( /comp-form/i.test(ele.className) && ele.querySelector('form') ); if (isInquiryChatForm) { _paq.push(['trackEvent', 'formInquiry', 'formInput', 'chat']); setInputTrackId(); return; } /** 向上查找父节点 */ ele = ele.parentNode; } }; function initInputListener() { var inputUseDebounce = function (fn, delay) { var timer = null; var that = this; return function () { var args = Array.prototype.slice.call(arguments); if (timer) clearTimeout(timer); timer = setTimeout(function () { fn.apply(that, args); }, delay); }; }; var optimizeGetInputDom = inputUseDebounce(getInputDom, 300); window.addEventListener('input', function (e) { /** 如果已经上报过，则不再上报 */ if (lockTrackInput()) return; optimizeGetInputDom(e.target); }); } try { initInputListener(); } catch (error) { console.log('initInputListener Error', error); } } trackActionInput(); } /** 第三方消息上报：目前主要是针对全点托管会话；在msgCollect/index.js中调试，访问test.html */ function thirdMsgCollect() { /** 先检测是否是stayReal托管：如果stayReal脚本都没有，那么说明当前站点未开启stayReal会话托管 */ const scriptList = Array.prototype.slice.call( document.querySelectorAll('script'), ); const checkStayReal = () => !!scriptList.find((s) => s.src.includes('stayreal.xiaoman.cn')); if (!checkStayReal()) return; /** 缓存当前消息队列的最后一条消息id */ const CACHE_KEY = 'CACHE_KEY_MONITOR'; const setCache = (msgIndex) => { /** 对缓存KEY进行base64转码处理 */ const cacheMsgIndex = btoa(msgIndex); localStorage.setItem(CACHE_KEY, cacheMsgIndex); }; const getCache = () => { const cacheMsgIndex = localStorage.getItem(CACHE_KEY); if (cacheMsgIndex) return Number(atob(cacheMsgIndex)); return -1; }; /** 拉取最新msg列表 */ const pullMsgList = () => { const msgEleList = Array.prototype.slice.call( document.querySelectorAll('#chat-list li'), ); const msgIds = []; const msgMap = msgEleList.reduce((acc, item) => { const sendTime = item .querySelector('.message-data-time') .textContent.trim(); const sendContent = item.querySelector('.message').textContent.trim(); /** msg带有class：other-message的是访客消息，my-message的是客服消息 */ const isOtherMessage = item .querySelector('.message') .classList.contains('other-message'); const msgId = item.querySelector('.message').getAttribute('id'); const msgItemData = { msgId, user: isOtherMessage ? 'visitor' : 'official', time: sendTime, content: sendContent, }; msgIds.push(msgId); acc[msgId] = msgItemData; return acc; }, {}); return { ids: msgIds, dataMap: msgMap, }; }; /** 加密并上传消息数据 */ let ENCRYPT_KEY = 'de29f1aab63ab033'; let ENCRYPT_IV = 'b8d2badf875e76ac'; const baseUrl = 'https://cms.xiaoman.cn'; // var getEncryptConfig = function () { // const url = baseUrl + '/shop-api/innerApi/getKeyIv' // $.get( // url, // function (result) { // console.log('result', result) // if (Number(result.code) === 0 && result.data.key && result.data.iv) { // ENCRYPT_KEY = result.data.key // ENCRYPT_IV = result.data.iv // uploadMsgData() // } else { // /** 如果获取失败，则重试 */ // setTimeout(() => { // getEncryptConfig() // }, 1000) // } // }, // 'json' // ) // } // getEncryptConfig() const encryptMsg = function (msgData) { const enc = new TextEncoder(); // 转字节 const keyBytes = enc.encode(ENCRYPT_KEY); const ivBytes = enc.encode(ENCRYPT_IV); const plainBytes = enc.encode(msgData); // 导入密钥并加密 return crypto.subtle .importKey('raw', keyBytes, { name: 'AES-CBC' }, false, ['encrypt']) .then(function (cryptoKey) { return crypto.subtle.encrypt( { name: 'AES-CBC', iv: ivBytes }, cryptoKey, plainBytes, ); }) .then(function (encryptedBuffer) { // 转 base64 返回 return btoa( String.fromCharCode(...new Uint8Array(encryptedBuffer)), ); }) .catch((err) => { return Promise.reject(err); }); }; let uploadFlag = false; const uploadMsgData = function () { if (uploadFlag) return; uploadFlag = true; const { ids, dataMap } = pullMsgList(); let cacheMsgIndex = getCache(); const msgLen = ids.length; if (!msgLen) { // 消息DOM未挂载 || 消息DOM已挂载，但是消息列表为空 uploadFlag = false; return; } if (msgLen - 1 < cacheMsgIndex) { /** 针对站点挂后台一段时间，消息列表会自动塞入重复消息，导致消息有重复，刷新后又重置回正常消息列表，所以这里需要更新锚点下标 */ cacheMsgIndex = msgLen - 1; setCache(cacheMsgIndex); uploadFlag = false; return; } if (msgLen - 1 === cacheMsgIndex) { // 缓存的最后一次发送的消息ID是最后一条(说明当前消息均已经上报)，则不跳过本地上报 uploadFlag = false; return; } const currentMsgIds = ids.slice(cacheMsgIndex + 1, msgLen); const currentMsgData = currentMsgIds.map((id) => dataMap[id]); const mtmId = window.matomo_site_id_cookie_key || ''; // 获取mtm会话id const msgBody = { mtmId, curl: window.location.href, msgList: currentMsgData, }; const msgBodyStr = JSON.stringify(msgBody); encryptMsg(msgBodyStr) .then(function (encryptedMsg) { console.log('encryptedMsg:', encryptedMsg, msgBodyStr); const url = baseUrl + '/shop-api/External/ListenSiteActiveStatus'; $.ajax({ type: 'POST', url, data: JSON.stringify({ d_v: encryptedMsg }), contentType: 'application/json', success: function (result) { if (Number(result.code) === 0) { // 更新消息队列 setCache(msgLen - 1); } uploadFlag = false; }, error: function (err) { console.error(err, '请求异常'); uploadFlag = false; }, }); }) .catch((err) => { console.error(err, '数据加密失败'); uploadFlag = false; }); }; /** 监控chat-list的DOM变更 */ const initChatListObserver = () => { // 需要监听的 DOM 节点 const target = document.getElementById('chat-list'); if (!target) return; // 回调函数 const callback = function (mutationsList, observer) { for (const mutation of mutationsList) { console.log('mutation', mutation); if (mutation.type === 'childList') { uploadMsgData(); } } }; // 配置 const config = { childList: true, // 监听子节点的增删 subtree: true, // 是否也监听后代节点 }; // 创建 observer const observer = new MutationObserver(callback); // 开始监听 observer.observe(target, config); }; let testCount = 30; let itv = null; const checkChatDom = () => !!document.querySelector('#vc-model'); const initTalkCheck = () => { itv = setTimeout(() => { console.log('checkChatDom', checkChatDom(), testCount); if (!checkChatDom() && testCount > 0) { testCount--; initTalkCheck(); return; } clearTimeout(itv); uploadMsgData(); initChatListObserver(); }, 1500); }; initTalkCheck(); } try { gtmTrack(); thirdMsgCollect(); console.log('inserted gtm code'); } catch (error) { console.error('gtmTrack Error', error); } }); })();

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Ethernet krustpunktu kabelis

Ethernet kabeļi ir speciālas vadus, kas ļauj dažādām elektroniskām ierīcēm sazināties vienai ar otru. A GYXTW krustpunktu kabelis ir Ethernet kabeļa veids. Šis kabelis tieši savieno ierīces — piemēram, datorus — vienu ar otru, neizmantojot maršrutētāju vai komutatoru. Apskatīsim Ethernet krustpunktu kabeļu pamatprincipus un to pareizu lietošanu.

Ethernet krustpunktu kabelis un tā lietojums

Ethernet krustpunktu kabeļi ir ļoti līdzīgi parastiem Ethernet kabeļiem. Tomēr, sūtot un saņemot informāciju, tie darbojas atšķirīgi. Krustpunktu kabelī vadi ir savstarpēji pārkombinēti. (Tāpēc to sauc par "krustpunktu" kabeli.) Šis savienojums ļauj ierīcēm tieši komunicēt vienai ar otru bez papildu starpnieku nepieciešamības.

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Savienojiet ierīci tikai dažos vienkāršos soļos

Šeit ir ātra atsauce, kas palīdzēs sākt darbu ar ierīču savienošanu, izmantojot ethernet krustpunktu kabeli:

Pieslēdzieties ierīcēm, kuras vēlaties savienot.

Pārbaudiet, vai abām jūsu ierīcēm ir ethernet porti.

Ievietojiet krustpunktu kabeli vienā galā ethernet portā pirmajā ierīcē.

Ievietojiet otru galu otrā ierīces Ethernet spraudnī.

Ļaujiet ierīcēm sinhronizēties, un pēc tam jūs tās lietosiet kopā.

Ethernet krustpunktu kabeļi: pārskats par to darbību un pielietošanas jomām. Atcerieties, ka kabelī iekšējie krustojas vadi, lai nodrošinātu tiešu sakaru. Tagad, kad zināt, kā savienot ierīces, izmantojot Ethernet krustpunktu kabeli, sekkojiet procesam soli pa solim.

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Shenzhen Xinxinda Communication Technology Co., LTD

Shenzhen Xinxinda Communication Technology Co., LTD tika izveidota 2002. gadā Longgang rajonā, Shenzhen pilsētā.

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4/f, B pastāvs, Shang Li Lang Otrā rūpniecības zona, NanWan iela, Longgang rajons, Shenzhen pilsēta, Guangdong provincia, Ķīna

+86-755 89765489

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https://www.xxdcable.com/

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