本文目录
使用范例
from bs4 import BeautifulSoup
html = """
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n=e.attr("content")||{};n=JSON.parse(n),t=n.hmId||t}return t}();!function(t){for(var e=document.cookie.split("; "),o=0;o<e.length;o++){var a=e[o].split("=");/^Hm\_.+\_.+$/.test(a[0])&&-1===a[0].indexOf(t)&&-1===a[0].indexOf(n)&&(document.cookie=a[0]+"="+escape("")+";max-age=0;domain=.csdn.net;path=/")}}(o),function(t){_hmt.push(["_setAccount",t])}(o),function(){try{var e=!!t("UN"),n=!!t("UserName"),o=t("p_uid");o=o?o.substr(1,1):0,_hmt.push(["_setUserProperty",{islogin:+e,isonline:+n,isvip:+(1==o)}]),n&&_hmt.push(["_setUserId",t("UserName")]),_hmt.push(["_setUserTag","6525",t("uuid_tt_dd")])}catch(t){void 0}}();var a=document.createElement("script");a.src="https://hm.baidu.com/hm.js?"+o;var r=document.getElementsByTagName("script")[0];if(r.parentNode.insertBefore(a,r),document.referrer.indexOf("google.com")>-1){var i=function(){dataLayer.push(arguments)},s=document.createElement("script");s.src="https://www.googletagmanager.com/gtag/js?id="+e(),r.parentNode.insertBefore(s,r),window.dataLayer=window.dataLayer||[];var c=t("UserName")||"";i("js",new Date),i("config",e()),c&&i("set",{user_id:c})}}(),function(){var t=document.createElement("script");t.type="text/javascript",t.async=!0,t.src="https://g.csdnimg.cn/??asdf/1.1.3/trackad.js,iconfont/nav/iconfont-1.0.1.js,notification/1.3.8/notify.js,notification/1.3.8/main.js";var e=document.getElementsByTagName("script")[0];e.parentNode.insertBefore(t,e)}(),window._hmt=window._hmt||[],function(t,e){function n(t){var e=document.createElement("link");e.rel="stylesheet",e.type="text/css",e.href=t,document.getElementsByTagName("head")[0].appendChild(e)}function o(t){for(var e=document.cookie.split("; "),n=0;n<e.length;n++){var o=e[n].split("=");if(o[0]==t)return decodeURIComponent(o[1])}}function a(t,e,n){var o=new Date;if(n)o.setTime(o.getTime()+n);else{o.setTime(o.getTime()+2592e6)}document.cookie=t+"="+encodeURIComponent(e)+";expires="+o.toGMTString()+";domain=.csdn.net;path=/"}function r(t){var e=new Date;document.cookie=t+"="+escape("1")+";max-age=0;expires="+e.toGMTString()+";domain=.csdn.net;path=/"}function i(t,e){var n,o=null;return function(){var a=this,r=new Date;r-o-e>0?(n&&(clearTimeout(n),n=null),t.apply(a,arguments),o=r):n||(n=setTimeout(function(){t.apply(a,arguments)},e))}}function s(t,e){var n;return function(){var o=this,a=arguments;n&&clearTimeout(n),n=setTimeout(function(){t.apply(o,a)},e)}}function c(t){t=t.replace("https://","");var e=t.split("/")[0];return~location.host.indexOf(e)}function l(){return location.origin+location.pathname==="https://www.csdn.net/c/"}function d(){return location.origin+location.pathname==="https://www.csdn.net/vip"}function p(n){if("[object Object]"==Object.prototype.toString.call(n)){var 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17:30:00"},background:{large:"https://csdnimg.cn/public/publick_img/ad_20200703_toolbar325.jpg",default:"https://csdnimg.cn/public/publick_img/ad_20200703_toolbar80_2.jpg"},color:"#027ef2",url:"https://aiprocon.csdn.net/p/live?utm_source=live_703"},this.init()}t.csdn=t.csdn||{},t.csdn.configuration_tool_parameterv=p;var f=["csdn-toolbar-default","csdn-toolbar-dark","csdn-toolbar-home"],b=[],v=0,y="normal";m.prototype={constructor:m,init:function(){var t=this;t.checkLogin(function(e){e.userName&&(t.hasLogin=!0,_hmt.push(["_setUserTag","5744",e.userName])),t.setPersonMenuData()}),t.getToolbarData(t.render)},render:function(e){var n=this;n.isMiniRenderSearch=!1,"mini"===y?(n.renderMiniToolbar(),n.renderLogo(),n.renderMiniMenu(),n.renderBtns(),n.chain(),t.csdn&&t.csdn.toolbarFinishCallback&&t.csdn.toolbarFinishCallback()):(n.renderToolbar(),n.renderLogo(),n.renderNav(),n.renderSearch(),n.renderBtns(),n.getHotSearchWordData(),n.chain())},setPersonMenuData:function(){this.personMenuData=[{name:"我的关注",url:"https://i.csdn.net/#/uc/follow-list",report:{mod:"popu_789",dest:"https://i.csdn.net/#/uc/follow-list",spm:"3001.5109"},icon:"toolbar-icon-follow",class:""},{name:"我的收藏",url:"https://i.csdn.net/#/uc/collection-list?type=1",report:{mod:"popu_789",dest:"https://i.csdn.net/#/uc/collection-list?type=1",spm:"3001.5110"},icon:"toolbar-icon-collect",class:""},{name:"个人中心",url:"https://i.csdn.net/#/uc/profile",report:{mod:"popu_789",dest:"https://i.csdn.net/#/uc/profile",spm:"3001.5111"},icon:"toolbar-icon-profile",class:""},{name:"帐号设置",url:"https://i.csdn.net/#/account/index",report:{mod:"popu_789",dest:"https://i.csdn.net/#/account/index",spm:"3001.5112"},icon:"toolbar-icon-account",class:"toolbar-subMenu-border"},{name:"我的博客",url:"https://blog.csdn.net/"+this.currentUser.userName,report:{mod:"popu_789",dest:"https://blog.csdn.net/",spm:"3001.5113"},icon:"toolbar-icon-blog",class:""},{name:"管理博客",url:"https://mp.csdn.net/console/article",report:{mod:"popu_789",dest:"https://mp.csdn.net/console/article",spm:"3001.5114"},icon:"toolbar-icon-mp",class:""},{name:"我的学院",url:"https://edu.csdn.net/",report:{mod:"popu_789",dest:"https://edu.csdn.net/",spm:"3001.5115"},icon:"toolbar-icon-edu",class:""},{name:"我的下载",url:"https://mp.csdn.net/console/upDetailed",report:{mod:"popu_789",dest:"https://mp.csdn.net/console/upDetailed",spm:"3001.5116"},icon:"toolbar-icon-download",class:""},{name:"我的书架",url:"https://book.csdn.net/bookshelf",report:{mod:"popu_789",dest:"https://book.csdn.net/bookshelf",spm:"3001.5117"},icon:"toolbar-icon-book",class:"toolbar-subMenu-border"},{name:"我的钱包",url:"https://i.csdn.net/#/wallet/index",report:{mod:"popu_789",dest:"https://i.csdn.net/#/wallet/index",spm:"3001.5136"},icon:"toolbar-icon-wallet",class:""},{name:"我的订单",url:"https://mall.csdn.net/myorder",report:{mod:"popu_789",dest:"https://mall.csdn.net/myorder",spm:"3001.5137"},icon:"toolbar-icon-order",class:"toolbar-subMenu-border"},{name:"帮助",url:"https://blog.csdn.net/blogdevteam/article/details/103478461",report:{mod:"popu_789",dest:"https://blog.csdn.net/blogdevteam/article/details/103478461",spm:"3001.5138"},icon:"toolbar-icon-help",class:""},{name:"退出",url:"javascript:;",report:{spm:"3001.5139"},icon:"toolbar-icon-logout",class:"toolbar-btn-logout"}]},getAvatarByAu:function(t){return!!t&&"https://profile.csdnimg.cn/"+t.split("").join("/")+"/2_"+(this.currentUser.userName&&this.currentUser.userName.toLowerCase())},checkLogin:function(t){var e=o("AU"),n=o("UserNick"),a=o("UserName");this.currentUser.userNick=n,this.currentUser.userName=a,this.currentUser.avatar=this.getAvatarByAu(e),t&&t(this.currentUser)},renderToolbar:function(){var t=this,n=t.getToolbarStyle(),o=e('<div id="csdn-toolbar">\n <div class="toolbar-inside" '+(n?'style="'+n+'"':"")+'>\n <div class="toolbar-container">\n <div class="toolbar-container-left">\n <div class="toolbar-logo toolbar-subMenu-box csdn-toolbar-fl"></div>\n <ul class="toolbar-menus csdn-toolbar-fl"></ul>\n </div>\n <div class="toolbar-container-middle">\n </div>\n <div class="toolbar-container-right">\n <div class="toolbar-btns onlyUser"></div>\n </div>\n </div>\n </div>\n </div>');return e("body").prepend(o),t.$container=o.find(".toolbar-container"),t.$logoBox=o.find(".toolbar-logo"),t.$NavBox=o.find(".toolbar-menus"),t.$btnsBox=o.find(".toolbar-btns"),e(document).on("click",function(n){0!==e(n.target).closest(".toolbar-search").length||t.searchInputFocus||(t.clearSeachDropMenu(),t.toggleSearchBarInput())}),this},renderMiniToolbar:function(){var t=this,n=t.getToolbarStyle(),o=e('<div id="csdn-toolbar">\n <div class="toolbar-inside" '+(n?'style="'+n+'"':"")+'>\n <div class="toolbar-container">\n <div class="toolbar-container-left">\n <div class="toolbar-logo toolbar-subMenu-box csdn-toolbar-fl"></div>\n </div>\n <div class="toolbar-container-mini-middle">\n </div>\n <div class="toolbar-container-right">\n <div class="toolbar-btns onlyUser"></div>\n </div>\n </div>\n </div>\n </div>');return e("body").prepend(o),t.$miniMenu=o.find(".toolbar-container-left"),t.$logoBox=o.find(".toolbar-logo"),t.$btnsBox=o.find(".toolbar-btns"),this},renderNav:function(){var t=this,e=""+this.navData.map(function(e){e.active=c(e.url),"index"===e.id&&l()?e.active=!1:"community"!==e.id||l()||(e.active=!1);var n=((new Date).getTime(),t.isEffectiveTime(e.icon));return'<li class="'+(e.active?"active ":"")+(e.children.length?"toolbar-subMenu-box":"")+(e.slider&&e.slider.list&&e.slider.list.length?" toolbar-subSlider-box":"")+"\" title='"+(e.title?e.title:"")+"'>\n <a "+(e.report?"data-report-click='"+JSON.stringify(e.report)+"'":"")+" "+(e.report&&e.report.spm?'data-report-query="spm='+e.report.spm+'"':"")+" href='"+e.url+"'>\n "+e.name+"\n "+(n?"<img style='"+e.icon.style+'\'" src="'+e.icon.url+'">':"")+"\n "+(e.children.length?'<i class="toolbar-subMenu-arrowHead"></i>':"")+"\n </a>\n "+(e.children.length?'<div class="toolbar-subMenu">\n '+e.children.map(function(t){return"<a data-report-click='"+JSON.stringify(t.report)+"' data-report-query=\"spm="+t.report.spm+'" target="_blank" href=\''+t.url+"'>"+t.name+"</a>"}).join("")+"\n </div>":"")+"\n "+(e.slider&&e.slider.list&&e.slider.list.length?'<div class="toolbar-subSlider">\n <div class=toolbar-subSlider-'+e.id+">\n "+e.slider.list.map(function(t){return(t.name&&t.name.length<=2||t.imgUrl)&&"<a "+(t.report?"data-report-click='"+JSON.stringify(t.report)+"'":"")+" "+(t.report&&t.report.spm?'data-report-query="spm='+t.report.spm+'"':"")+' target="_blank" href='+(t.url?t.url:"javascript:void(0);")+">"+(t.name?t.name:"")+(t.imgUrl?"<img src="+t.imgUrl+" style="+(t.imgStyle?t.imgStyle:"")+" />":"")+"</a>"}).join("")+"\n </div>\n </div>":"")+"\n </li>"}).join("");return this.$NavBox.append(e),this},renderLogo:function(){var t=["default","dark","home"],e=t[v],n='<a data-report-click=\'{"spm":"3001.4476"}\' data-report-query="spm=3001.4476" href="'+(this.logoData.link||"https://csdn.net")+'"><img title="'+(this.logoData.title||"CSDN首页")+'" src="'+this.logoData.url[e]+'"></a>\n '+(this.logoData.qrcode?'<div class="toolbar-subMenu">\n <img width="96" height="96" src="'+this.logoData.qrcode+'">\n </div>':"");return void 0,this.$logoBox.append(n),this},renderSearch:function(n){var o=this,a=e('<div class="toolbar-search onlySearch"><div class="toolbar-search-container">\n <input id="toolbar-search-input" autocomplete="off" type="text" value="" placeholder="'+this.getSearchInputPlaceHolder()+'">\n <button id="toolbar-search-button"><i></i><span>搜索</span></button>\n <input type="password" autocomplete="new-password" readonly disabled="true" style="display: none; position:absolute;left:-9999999px;width:0;height:0;"/>\n </div></div>'),r=!1,i=s(this.getSearchAssociateWord,300).bind(this);return a.on("focus","#toolbar-search-input",function(t){var a=e(this),s=a.val().trim();""===s?o.getSearchHistoryArray(o.renderSearchHistoryDropMenu):i(s,o.renderAssociateWordDropMenu.bind(o)),n||o.toggleSearchBarInput("focus"),o.searchInputFocus=!0,r=!0}).on("blur","#toolbar-search-input",function(t){o.searchInputFocus=!1}).on("input","#toolbar-search-input",function(t){var n=e(this),a=n.val().trim();o.searchInputValue=a,void 0,""===a&&r?o.getSearchHistoryArray(o.renderSearchHistoryDropMenu):i(a,o.renderAssociateWordDropMenu.bind(o))}).on("click","button",function(t){var r=e("#toolbar-search-input").val();return o.clickSearchBtnHandler.call(o,r),o.buriedPoint({spm:"3001.4498",extend1:r?"":"pc_search_hot_word"}),o.clearSeachDropMenu(),a.find("#toolbar-search-input").blur(),n||o.toggleSearchBarInput(),!1}).on("keyup","#toolbar-search-input",function(t){13===t.keyCode&&e("#toolbar-search-button").trigger("click")}),n?(e(n).append(a),o.isMiniRenderSearch=!0,e(document).on("click",function(t){0!==e(t.target).closest(".toolbar-search").length||o.searchInputFocus||o.clearSeachDropMenu()})):e(".toolbar-container-middle").append(a),o.$searchBox=e(".toolbar-search"),e(t).on("keydown",function(t){var n=e(".associate-word-drop-menu");if(n.length&&r){var o=n.find(".toolbar-search-item"),i=n.find(".toolbar-search-item.active"),s=i.length?i.index():-1;"ArrowUp"===t.key?(s--,s<0&&(s=o.length-1),o.eq(s).addClass("active").siblings().removeClass("active"),a.find("#toolbar-search-input").val(o.eq(s).text()),t.preventDefault()):"ArrowDown"===t.key&&(s++,s>o.length-1&&(s=0),o.eq(s).addClass("active").siblings().removeClass("active"),void 0,a.find("#toolbar-search-input").val(o.eq(s).text()))}}),e(t).on("resize",function(){r&&(o.clearSeachDropMenu(),a.find("#toolbar-search-input").blur(),n||o.toggleSearchBarInput())}),this},outPutSearchMethod:function(t){this.renderSearch(t),this.getHotSearchWordData()},renderBtns:function(){var t=this,n=e('<div class="toolbar-btn toolbar-btn-login csdn-toolbar-fl '+(this.hasLogin?"toolbar-subMenu-box":"")+'">\n '+(this.hasLogin?'<a class="hasAvatar" data-report-click=\'{"spm": "3001.5343"}\' data-report-query="spm=3001.5343" href="https://blog.csdn.net/'+t.currentUser.userName+'"><img src="'+this.currentUser.avatar+'"></a>':' <a data-report-click=\'{"spm":"3001.5105"}\' data-report-query="spm=3001.5105" href="https://passport.csdn.net/account/login">登录/注册</a>')+'\n </div>\n <div class="toolbar-btn toolbar-btn-vip csdn-toolbar-fl">\n <a data-report-click=\''+JSON.stringify(t.vipData.report)+"' "+(t.vipData.report.spm?'data-report-query="spm='+t.vipData.report.spm+'"':"")+" href='"+t.vipData.url+"'>"+t.vipData.name+" "+(t.isEffectiveTime(t.vipData.icon)?"<img style='"+t.vipData.icon.style+'\'" src="'+t.vipData.icon.url+'">':"")+'</a>\n </div>\n <div class="toolbar-btn toolbar-btn-collect csdn-toolbar-fl">\n <a data-report-click=\'{"spm":"3001.4506"}\' data-report-query="spm=3001.4506" href="https://i.csdn.net/#/user-center/collection-list?type=1">收藏</a>\n </div>\n <div class="toolbar-btn csdn-toolbar-fl"><a data-report-click=\'{"spm":"3001.4507"}\' data-report-query="spm=3001.4507" href="https://blink.csdn.net">动态</a></div>\n '+(this.hasLogin?'<div class="toolbar-btn toolbar-btn-msg csdn-toolbar-fl">\n <div class="toolbar-subMenu-box">\n <a data-report-click=\'{"spm":"3001.4508"}\' data-report-query="spm=3001.4508" id="toolbar-remind" href="https://i.csdn.net/#/msg/index">消息</a>\n </div>\n <div class="toolbar-msg-box"></div>\n </div>':"")+'\n <div class="toolbar-btn toolbar-btn-write csdn-toolbar-fl '+(this.hasLogin?"toolbar-subMenu-box":"")+'">\n <a data-report-click=\'{"spm":"3001.4503"}\' data-report-query="spm=3001.4503" href="https://mp.csdn.net"><i></i>创作<i></i></a>\n </div>');return this.$btnsBox.append(n),n.on("click",".toolbar-btn-logout",function(){t.clickLogoutBtnHandler()}),this.$msgBox=n.find(".toolbar-msg-box"),this},renderMiniMenu:function(){var t=e('<div class="csdn-toolbar-mini csdn-toolbar-fl">\n <div class="toolbar-mini-meun-logo">\n <div class="toolbar-mini-icon"></div>\n <span>导航</span>\n <div class="toolbar-mini-partition"></div>\n </div>\n <ul class="csdn-toolbar-mini-ul">'+this.navData.map(function(t){return t.active=c(t.url),"index"===t.id&&l()?t.active=!1:"community"!==t.id||l()?d()&&(t.active=!1):t.active=!1,'<li class="'+(t.active?"active ":"")+'csdn-toolbar-mini-li">\n <a '+(t.report?"data-report-click='"+JSON.stringify(t.report)+"'":"")+" "+(t.report&&t.report.spm?'data-report-query="spm='+t.report.spm+'"':"")+" href='"+t.url+"'>"+t.name+"</a>\n </li>"}).join("")+"\n </ul>\n </div>");return this.$miniMenu.prepend(t),this},renderMsgMenu:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};if(this.hasLogin){var e='<div class="toolbar-subMenu">\n <a data-type="comment" href="https://i.csdn.net/#/msg/index"><span \n class="pos-rel">评论'+(t.comment?"<i></i>":"")+'</span></a>\n <a data-type="attention" href="https://i.csdn.net/#/msg/attention"><span class="pos-rel">关注'+(t.follow?"<i></i>":"")+'</span></a> \n <a data-type="like" href="https://i.csdn.net/#/msg/like"><span class="pos-rel">点赞'+(t.thumb_up?"<i></i>":"")+'</span></a>\n <a data-type="chat" href="https://im.csdn.net/im/main.html"><span class="pos-rel">私信'+(t.im?"<i></i>":"")+'</span></a>\n <a data-type="notice" href="https://i.csdn.net/#/msg/notice"><span class="pos-rel">系统通知'+(t.system?"<i></i>":"")+'</span></a>\n <a href="https://i.csdn.net/#/msg/setting">消息设置</a>\n </div>';this.$btnsBox.find(".toolbar-btn-msg .toolbar-subMenu-box").append(e)}else this.setRemind("https://passport.csdn.net/account/login",0);b.length&&b.forEach(function(t){return t()})},renderCoupon:function(n){var o=e('<a href="https://i.csdn.net/#/msg/notice" class="toolbar-msg-coupon">你有一张VIP限时优惠券哦</a>');n&&n>0&&-1===t.location.href.indexOf("assign_skin_id")&&(this.$msgBox.append(o),setTimeout(function(){o.remove()},5e3))},renderGuide:function(t){var n=this,r=o("c-toolbar-loginguide"),i=e('<span class="toolbar-msg-guide"><a href="https://i.csdn.net/#/msg/index">登录查看未读消息</a><i></i></span>');!r&&t&&(i.find("i").click(function(t){a("c-toolbar-loginguide",1,864e5),i.remove()}),!n.hasLogin&&t>0&&this.$msgBox.append(i))},renderLiveMsg:function(t){var n=this;if(t&&1===t.status){var o=e('<div class="toolbar-msg-live">\n <a class="toolbar-msg-live-title" target="_blank" href="'+t.url+'">'+t.title+'</a>\n <p class="toolbar-msg-live-count"><i></i>'+t.count+'人在看</p>\n <div class="toolbar-msg-live-avatar"><span><img src="'+t.avatar+'" alt=""></span></div>\n <span class="toolbar-msg-live-close"></span>\n </div>');o.on("click",".toolbar-msg-live-close",function(t){o.remove()}),o.on("click",".toolbar-msg-live-title",function(e){n.reportLiveId(+t.messageId)}),n.$msgBox.append(o),setTimeout(function(){o.remove()},15e3)}},reportLiveId:function(t){if(t===t){var n={messageId:t};n=JSON.stringify?JSON.stringify(n):'{"messageId":'+t+"}",e.ajax({url:"https://msg.csdn.net/v1/web/message/view/live",type:"post",data:n,contentType:"application/json",xhrFields:{withCredentials:!0},dataType:"json",success:function(t){}})}},renderSearchHistoryDropMenu:function(){var t=this,n=this.getSearchHistoryData(),o=e('<div class="toolbar-search-drop-menu '+(n.length?"toolbar-search-half":"")+'">\n '+(n.length?'<div class="toolbar-search-history">\n <p class="toolbar-search-title">搜索历史<span class="toolbar-search-clear"><i></i>清空</span></p>\n <ul>\n '+n.map(function(t){return'<li class="toolbar-search-item" data-type="history">'+t+"</li>"}).join("")+"\n </ul>\n </div>":"")+"\n 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n=t.text(),o=t.data("type"),a=this,r=t.index(),i={extra:JSON.stringify({searchword:n})};if("hot"===o){var s=a.hotSearchData[r],c=s&&s.reportData;i=c?a.getHotSearchPointData(c,n):Object.assign({},i,{spm:"3001.4502"})}else if("history"===o)i=Object.assign({},i,{spm:"3001.4501"});else{i=this.searchAssociateWord[r].reportData.data;try{i.extra&&"[object Object]"===Object.prototype.toString.call(JSON.parse(i.extra))&&(i.extra=JSON.stringify(Object.assign({},JSON.parse(i.extra),{query:a.historySearchInputValue})))}catch(t){void 0}this.urlParams=this.searchAssociateWord[r].reportData.urlParams}void 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Date).valueOf()-t.copyHotSearchDataTime<=2e3&&t.hotSearchData)return void t.renderSearchHotDropMenu(t.hotSearchData);e.ajax({url:"https://silkroad.csdn.net/api/v2/assemble/list/channel/pc_hot_word",type:"get",data:{channel_name:"pc_hot_word",size:10,user_name:t.currentUser.userName,platform:"pc",imei:o("uuid_tt_dd")},contentType:"application/json",dataType:"json",success:function(e){if(200===e.code){var n=e.data&&e.data.items;t.copyHotSearchData(n),t.renderSearchHotDropMenu(n)}},error:function(e){t.hotSearchData&&t.renderSearchHotDropMenu(t.hotSearchData)}})},
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"""
#创建 Beautiful Soup 对象
# 使用lxml来进行解析
soup = BeautifulSoup(html,"lxml")
print(soup.prettify())
返回结果
常用的对象–Tag
就是 HTML 中的一个个标签
在上面范例的基础上添加
from bs4 import BeautifulSoup
html = """
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e("body").prepend(o),t.$container=o.find(".toolbar-container"),t.$logoBox=o.find(".toolbar-logo"),t.$NavBox=o.find(".toolbar-menus"),t.$btnsBox=o.find(".toolbar-btns"),e(document).on("click",function(n){0!==e(n.target).closest(".toolbar-search").length||t.searchInputFocus||(t.clearSeachDropMenu(),t.toggleSearchBarInput())}),this},renderMiniToolbar:function(){var t=this,n=t.getToolbarStyle(),o=e('<div id="csdn-toolbar">\n <div class="toolbar-inside" '+(n?'style="'+n+'"':"")+'>\n <div class="toolbar-container">\n <div class="toolbar-container-left">\n <div class="toolbar-logo toolbar-subMenu-box csdn-toolbar-fl"></div>\n </div>\n <div class="toolbar-container-mini-middle">\n </div>\n <div class="toolbar-container-right">\n <div class="toolbar-btns onlyUser"></div>\n </div>\n </div>\n </div>\n </div>');return e("body").prepend(o),t.$miniMenu=o.find(".toolbar-container-left"),t.$logoBox=o.find(".toolbar-logo"),t.$btnsBox=o.find(".toolbar-btns"),this},renderNav:function(){var t=this,e=""+this.navData.map(function(e){e.active=c(e.url),"index"===e.id&&l()?e.active=!1:"community"!==e.id||l()||(e.active=!1);var n=((new Date).getTime(),t.isEffectiveTime(e.icon));return'<li class="'+(e.active?"active ":"")+(e.children.length?"toolbar-subMenu-box":"")+(e.slider&&e.slider.list&&e.slider.list.length?" toolbar-subSlider-box":"")+"\" title='"+(e.title?e.title:"")+"'>\n <a "+(e.report?"data-report-click='"+JSON.stringify(e.report)+"'":"")+" "+(e.report&&e.report.spm?'data-report-query="spm='+e.report.spm+'"':"")+" href='"+e.url+"'>\n "+e.name+"\n "+(n?"<img style='"+e.icon.style+'\'" src="'+e.icon.url+'">':"")+"\n "+(e.children.length?'<i class="toolbar-subMenu-arrowHead"></i>':"")+"\n </a>\n "+(e.children.length?'<div class="toolbar-subMenu">\n '+e.children.map(function(t){return"<a data-report-click='"+JSON.stringify(t.report)+"' data-report-query=\"spm="+t.report.spm+'" target="_blank" href=\''+t.url+"'>"+t.name+"</a>"}).join("")+"\n </div>":"")+"\n 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a=e(this),s=a.val().trim();""===s?o.getSearchHistoryArray(o.renderSearchHistoryDropMenu):i(s,o.renderAssociateWordDropMenu.bind(o)),n||o.toggleSearchBarInput("focus"),o.searchInputFocus=!0,r=!0}).on("blur","#toolbar-search-input",function(t){o.searchInputFocus=!1}).on("input","#toolbar-search-input",function(t){var n=e(this),a=n.val().trim();o.searchInputValue=a,void 0,""===a&&r?o.getSearchHistoryArray(o.renderSearchHistoryDropMenu):i(a,o.renderAssociateWordDropMenu.bind(o))}).on("click","button",function(t){var r=e("#toolbar-search-input").val();return 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n={messageId:t};n=JSON.stringify?JSON.stringify(n):'{"messageId":'+t+"}",e.ajax({url:"https://msg.csdn.net/v1/web/message/view/live",type:"post",data:n,contentType:"application/json",xhrFields:{withCredentials:!0},dataType:"json",success:function(t){}})}},renderSearchHistoryDropMenu:function(){var t=this,n=this.getSearchHistoryData(),o=e('<div class="toolbar-search-drop-menu '+(n.length?"toolbar-search-half":"")+'">\n '+(n.length?'<div class="toolbar-search-history">\n <p class="toolbar-search-title">搜索历史<span class="toolbar-search-clear"><i></i>清空</span></p>\n <ul>\n '+n.map(function(t){return'<li class="toolbar-search-item" data-type="history">'+t+"</li>"}).join("")+"\n </ul>\n </div>":"")+"\n 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</div>");n.on("mouseover","li.toolbar-search-item",function(t){e(this).addClass("active").siblings().removeClass("active")}).on("mouseleave","li.toolbar-search-item",function(){e(this).removeClass("active")}),this.$searchHotAndHistoryDropMenu.find(".toolbar-search-hot").remove(),this.$searchHotAndHistoryDropMenu&&this.$searchHotAndHistoryDropMenu.append(n)}},renderAssociateWordDropMenu:function(t){if(this.searchInputFocus){var n=this,o=e('<div class="toolbar-search-drop-menu associate-word-drop-menu" style="height: auto;">\n <ul>\n '+t.map(function(t){return'<li class="toolbar-search-item" data-type="suggest" data-report-view=\''+JSON.stringify(t.reportData.data)+"'>"+t.productId+"</li>"}).join("")+"\n </ul>\n </div>");o.on("click","li",function(t){n.clickSearchItemHandler.call(n,e(this)),n.isMiniRenderSearch||n.setAnimate(n.$NavBox,{width:"auto"})}),o.on("mouseover","li.toolbar-search-item",function(t){e(this).addClass("active").siblings().removeClass("active")}).on("mouseleave","li.toolbar-search-item",function(){e(this).removeClass("active")}),this.$searchBox.append(o),this.reportViewCheck()}},clickSearchBtnHandler:function(n){var o=encodeURIComponent(n||this.placeHolder),a=!n&&this.placeHolder,r="",i="https://so.csdn.net/so/search/s.do?q="+o+"&t="+u()+"&u=",s=a?this.urlParamsPlaceholder:this.urlParams;if(void 0,"undefined"===o)return e("#toolbar-search-input").focus(),!1;if(s){for(var c in s)if(s.hasOwnProperty(c)){var l=s[c];r+="&"+c+"="+l}i+=r}this.urlParams="",t.location.href.indexOf("so.csdn.net")>-1?t.csdn&&t.csdn.toolbarSearchUrl?t.location.href=t.csdn.toolbarSearchUrl+o+r:t.location.href=i:t.open(i)},clickSearchItemHandler:function(t){var n=t.text(),o=t.data("type"),a=this,r=t.index(),i={extra:JSON.stringify({searchword:n})};if("hot"===o){var s=a.hotSearchData[r],c=s&&s.reportData;i=c?a.getHotSearchPointData(c,n):Object.assign({},i,{spm:"3001.4502"})}else if("history"===o)i=Object.assign({},i,{spm:"3001.4501"});else{i=this.searchAssociateWord[r].reportData.data;try{i.extra&&"[object Object]"===Object.prototype.toString.call(JSON.parse(i.extra))&&(i.extra=JSON.stringify(Object.assign({},JSON.parse(i.extra),{query:a.historySearchInputValue})))}catch(t){void 0}this.urlParams=this.searchAssociateWord[r].reportData.urlParams}void 0,a.buriedPoint(i),e("#toolbar-search-input").val(n).blur(),a.clickSearchBtnHandler.call(a,n),a.clearSeachDropMenu(),a.isMiniRenderSearch||a.toggleSearchBarInput()},clickAnnouncementHandler:function(){this.hasLogin&&(e("#toolbar-announcement").find(">i").remove(),this.announcement&&(this.announcement.announcementCount=0),a("announcement-new",JSON.stringify(this.announcement),this.announcement.announcementExpire||3e5),this.clearReadAnnouncement())},clickLogoutBtnHandler:function(){var e={mod:"popu_789"},n="https://passport.csdn.net/account/logout?from="+encodeURIComponent(t.location.href);e.dest=n,e.extend1="退出",t.location.href=n,csdn&&csdn.report&&csdn.report.reportClick(e)},clearSeachDropMenu:function(){e(".toolbar-search-drop-menu").remove()},clearReadAnnouncement:function(){e.ajax({url:"https://msg.csdn.net/v1/web/message/read_announcement",type:"post",contentType:"application/json",xhrFields:{withCredentials:!0},dataType:"json",success:function(t){},error:function(t){void 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charset=utf-8",xhrFields:{withCredentials:!0},dataType:"json",success:function(e){if(200===e.code){if(t.pollDelay=e.pollDelay,!e.data.length)return void t.setTimer();t.allData=e.data,t.barrageList=t.getBarrageList(),t.renderBarrage(),t.start(),t.insertAdCookie(),t.resetErrorCount()}else 201!==e.code&&t.handleQueryError()},error:function(e){t.handleQueryError()}})}},{key:"handleQueryError",value:function(){this.errorCount++,this.setTimer(),this.errorCount>10&&clearTimeout(this.timer)}},{key:"getBarrageList",value:function(){var t=this.allData.slice(0,3);return this.allData=this.allData.slice(3),t.map(function(t){return Object.assign({},t,{x:0,speed:2+Number(Math.random().toFixed(1)),stop:!1})})}},{key:"start",value:function(){for(var t=this,n=document.documentElement.clientWidth,o=0,a=0;a<this.barrageDomArr.length;a++)!function(a){t.fnArr.push(function(){if(t.barrageList[a].x-=t.barrageList[a].speed,t.barrageDomArr[a].style.transform="translateX("+t.barrageList[a].x+"px)",n+t.barrageList[a].x>=-t.barrageBoxWidth&&!t.barrageList[a].stop)requestAnimationFrame(t.fnArr[a]);else if(n+t.barrageList[a].x<-t.barrageBoxWidth&&!t.barrageList[a].stop&&++o===t.barrageDomArr.length){if(t.fnArr=[],$("#barrageBox").remove(),!t.checkIsPassport()){var r=t.getTomorrowTimeRemaining();e("ad_last_time",Date.now(),r)}t.barrageList=t.getBarrageList(),t.barrageList.length?(t.renderBarrage(),t.start(),t.insertAdCookie()):t.setTimer()}})}(a);for(var r=0;r<this.barrageList.length;r++)!function(e){requestAnimationFrame(t.fnArr[e]),setTimeout(function(){window.csdn.report.reportView({mod:"popu_894",extend1:t.barrageList[e].barrageId,dest:t.barrageList[e].clickUrl})},1e3)}(r)}},{key:"insertCss",value:function(){var t=document.getElementsByTagName("head")[0],e=document.createElement("style");e.type="text/css",e.appendChild(document.createTextNode("\n #barrageBox .barrage-item {\n position:relative;\n display: flex;\n align-items: center;\n height: 40px;\n margin-bottom: 62px;\n border-radius: 0 100px 100px 0;\n width: fit-content;\n }\n #barrageBox .barrage-item.barrage-link-hide {\n visibility: hidden;\n }\n #barrageBox .barrage-item .barrage-follow {\n cursor: pointer;\n position: absolute;\n left: 8px;\n bottom: -9px;\n z-index: 999;\n border: none;\n outline: none;\n font-size: 12px;\n font-weight: 500;\n line-height: 17px;\n color: #FFFFFF;\n -webkit-background-clip: text;\n -webkit-text-fill-color: transparent;\n }\n #barrageBox .barrage-item .barrage-follow.is-follow {\n left: 2px\n }\n #barrageBox .barrage-item .barrage-link {\n position: relative;\n display: flex;\n align-items: center;\n color: #fff;\n font-size: 14px;\n font-weight: 500;\n height: 100%;\n padding-right: 24px;\n min-width: 294px;\n }\n #barrageBox .barrage-item .barrage-link img {\n width: 38px;\n height: 38px;\n display: block;\n border-radius: 50%;\n margin-right: 27px;\n }\n #barrageBox .barrage-item .barrage-link .barrage-content {\n max-width: 592px;\n overflow: hidden;\n text-overflow: ellipsis;\n white-space: nowrap;\n }\n #barrageBox .barrage-item .barrage-link .barrage-bg {\n width: 320px;\n height: 80px;\n position: absolute;\n left: -26px;\n top: 50%;\n transform: translateY(-50%);\n }\n #barrageBox .barrage-item .barrage-right {\n position: relative;\n height: 100%;\n width: 44px;\n display: flex;\n align-items: center;\n }\n #barrageBox .barrage-item .barrage-right .barrage-close {\n width: 100%;\n height: 100%;\n position: absolute;\n background: url('https://img-home.csdnimg.cn/images/20201104030927.png') no-repeat center;\n background-size: 16px 16px;\n cursor: pointer;\n }\n #barrageBox .barrage-item .barrage-right .barrage-right-border {\n width: 1px;\n height: 20px;\n background: rgba(255, 255, 255, 0.3);\n }\n ")),t.appendChild(e)}},{key:"renderBarrage",value:function(){for(var n="",o=0;o<this.barrageList.length;o++){var a=this.barrageList[o].barrageId,r=this.barrageList[o].clickUrl;n+='\n <div class="barrage-item" style="background-color: '+this.barrageList[o].bgColor+"; 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href="https://book.csdn.net/?utm_source=vip_dzs_862637798_yy"><i class="csdn-plugin-vip-icon csdn-plugin-vip-icon-book"></i><br/>千本电子书</a>\n <a href="https://so.csdn.net/so/search?q=&t=vip&s=0&pnt=-1&ct=100&utm_source=vip_jswz_862637798_yy"><i class="csdn-plugin-vip-icon csdn-plugin-vip-icon-pages"></i><br/>VIP技术文章</a>\n </div>\n <div class="csdn-plugin-vip-footer">\n <a data-report-click=\'{"spm": "'+r+'"}\' data-report-query="spm='+r+'" class="csdn-plugin-vip-footer-btn" href="'+(n?a:o)+'">\n '+(n?"去使用权益":"开通会员")+'\n </a>\n <a data-report-click=\'{"spm": "'+i+'"}\' data-report-query="spm='+i+'" class="csdn-plugin-vip-footer-link" href="'+(n?o:a)+'">\n '+(n?"立即续费享8折优惠":"查看完整会员权益")+"<i></i>\n </a>\n </div>\n </div>"),c=$(".toolbar-btn-vip").find(">a");$(".toolbar-btn-vip").append(s),n&&(c.attr("href",a),c.attr("data-report-click",'{"spm": "3001.5399"}'),c.attr("data-report-query","spm=3001.5399")),e.box=s,e.showVip(),e.isRender=!0},n.prototype.showVip=function(){var t=this;clearTimeout(t.timer),t.timer=setTimeout(function(){t.isEnter&&t.box&&t.box.stop().fadeIn(100)},150)},n.prototype.hideVip=function(){var t=this;clearTimeout(t.timer),t.isEnter||t.box&&t.box.stop().fadeOut(100)},n.prototype.init=function(){var t=window.csdn.toolbar&&window.csdn.toolbar.profileData;t?this.renderVip(t):this.getProfileData(this.renderVip)},n.prototype.bindEvent=function(){var t=this;$(".toolbar-btn-vip").on("mouseenter",function(e){t.isEnter=!0,t.isRender?t.showVip():t.init()}).on("mouseleave",function(e){t.isEnter=!1,t.hideVip()})},$(document).on("toolbarReady",function(t){void 0,setTimeout(function(){e()&&new n},200)})}(),function(){var t=!1,e=function(){function e(){_classCallCheck(this,e),this.container=$(".toolbar-btn.toolbar-btn-write"),this.activityList=[],this.init()}return _createClass(e,[{key:"init",value:function(){this.render(),this.getActivityList()}},{key:"getActivityList",value:function(){var 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"""
#创建 Beautiful Soup 对象
# 使用lxml来进行解析
soup = BeautifulSoup(html,"lxml")
#print(soup.prettify())
#创建 Beautiful Soup 对象
soup = BeautifulSoup(html,'lxml')
print (soup.title)#None因为这里没有tiele标签所以返回none
print (soup.head)#None因为这里没有head标签所以返回none
print (soup.a)#返回 <a class="fill-dec" href="//my.csdn.net" target="_blank">编辑自我介绍，让更多人了解你<span class="write-icon"></span></a>
print (type(soup.p))#返回 <class 'bs4.element.Tag'>
print( soup.p)
其中print( soup.p)
返回结果为
同样地，在上面地基础上添加
print (soup.name)# [document] #soup 对象本身比较特殊，它的 name 即为 [document]
返回
print (soup.head.name)#head #对于其他内部标签，输出的值为标签本身的名称
print (soup.p.attrs)##把p标签的所有属性打印出来,得到的类型是一个字典。
返回
print (soup.p['class'])#获取P标签下地class标签
soup.p['class'] = "newClass"
print (soup.p) # 可以对这些属性和内容等等进行修改
返回
常用的对象–NavigableString
前面地基础上添加
print (soup.p.string)
# The Dormouse's story
print (type(soup.p.string))
# <class 'bs4.element.NavigableString'>thon
返回结果
常用的对象–BeautifulSoup
beautiful soup对象表示文档的全部内容。大多数情况下，它可以被视为标记对象。它支持遍历文档树并搜索文档树中描述的大多数方法
因为Beauty soup对象不是真正的HTML或XML标记，所以它没有名称和属性。但是，有时查看其内容很方便。Name属性，因此美丽的汤对象包含一个特殊属性。值为“[文档]”的名称
print(soup.name)
#返回 '[document]'
常用的对象–Comment
用于解释注释部分的内容
markup = "<b><!--Hey, buddy. Want to buy a used parser?--></b>"
soup = BeautifulSoup(markup)
comment = soup.b.string
type(comment)
# <class 'bs4.element.Comment'>
对文档树的遍历
在上面的基础上添加
head_tag = soup.div
# 返回所有子节点的列表
print(head_tag.contents)
返回
同理
head_tag = soup.div
# 返回所有子节点的迭代器
for child in head_tag.children:
print(child)
返回
tag中包含多个字符串的情况
可用 .strings 来循环获取
for string in soup.strings:
print(repr(string))
返回
.stripped_strings 去除空白内容
for string in soup.stripped_strings:
print(repr(string))
返回
搜索文档树–find和find_all
找到所有
print(soup.find_all("a",id='link2'))
find方法是找到第一个满足条件的标签后立即返回，返回一个元素。find_all方法是把所有满足条件的标签都选到，然后返回。
select方法(各种查找)
#通过标签名查找：
print(soup.select('a'))
#通过类名查找：
#通过类名，则应该在类的前面加一个'.'
print(soup.select('.sister'))
#通过id查找：
#通过id查找，应该在id的名字前面加一个＃号
print(soup.select("#link1"))
查找a标签返回的结果
其他因为网页本身没有，返回的是一个空列表
组合查找
print(soup.select("p #link1"))#查找 p 标签中，id 等于 link1的内容
子标签查找
print(soup.select("head > title"))
通过属性查找
print(soup.select('a[href="http://example.com/elsie"]'))#属性与标签属同一节点，中间不能有空格
获取内容
先查看类型
print (type(soup.select('div')))
for title in soup.select('div'):
print (title.get_text())
返回
print (soup.select('div')[20].get_text())#选取第20个div标签的内容
返回
