按需举办网络研讨会
方便您随时了解产品演示、最佳实践、图书馆科学研究和其他 OCLC 主题。
Stay in the know
Get the latest product updates, research, events, and much more—right to your inbox.
CloudLibrary’s unique content sharing program, CloudLink™, is a budget-friendly way to expand the breadth and depth of your ebook and eaudiobook collection. You’ll increase circulation of lesser-used titles, and decrease hold times on popular materials by working with other CloudLink libraries in your state.
"),el=vwo_$("#vertical-center-photo-left > div:nth-of-type(2) > div:nth-of-type(1) > div:nth-of-type(1) > p:nth-of-type(1)");})("#vertical-center-photo-left > div:nth-of-type(2) > div:nth-of-type(1) > div:nth-of-type(1) > p:nth-of-type(1)")}}},rules:[{"triggers":["3204947"],"tags":[{"data":{"campaigns":[{"c":24,"g":1}],"type":"m"},"metricId":394880,"id":"metric"}]},{"triggers":["9901843"],"tags":[{"data":{"campaigns":[{"c":53,"g":1}],"type":"m"},"metricId":1094613,"id":"metric"},{"data":{"campaigns":[{"c":50,"g":1}],"type":"m"},"id":"metric","metricId":1094613}]},{"triggers":["13531875","13531878"],"tags":[{"priority":4,"data":"campaigns.57","id":"runCampaign"}]},{"triggers":["7538449","7538452"],"tags":[{"priority":4,"data":"campaigns.45","id":"runCampaign"},{"priority":4,"data":"campaigns.48","id":"runCampaign","triggerIds":["7538449","7538452"]}]},{"triggers":["7538449","7538452","13418922","13418925"],"tags":[{"priority":4,"data":"campaigns.67","id":"runCampaign"}]},{"triggers":["7538449"],"tags":[{"priority":4,"data":"campaigns.52","id":"runCampaign"}]},{"triggers":["12415740"],"tags":[{"priority":4,"data":"campaigns.62","id":"runCampaign"}]},{"triggers":["7538455"],"tags":[{"data":{"campaigns":[{"c":45,"g":2}],"type":"m"},"metricId":856873,"id":"metric"}]},{"triggers":["13465101"],"tags":[{"priority":4,"data":"campaigns.63","id":"runCampaign"}]},{"triggers":["4049042"],"tags":[{"data":{"campaigns":[{"c":33,"g":1}],"type":"g"},"metricId":0,"id":"metric"}]},{"triggers":["11218597"],"tags":[{"data":{"campaigns":[{"c":23,"g":3}],"type":"g"},"metricId":0,"id":"metric"}]},{"triggers":["13418928"],"tags":[{"data":{"campaigns":[{"c":48,"g":1}],"type":"m"},"metricId":256165,"id":"metric"},{"data":{"campaigns":[{"c":67,"g":1}],"type":"m"},"id":"metric","metricId":256165}]},{"triggers":["11901466"],"tags":[{"data":{"campaigns":[{"c":62,"g":2}],"type":"m"},"metricId":1302544,"id":"metric"}]},{"triggers":["3699301"],"tags":[{"data":{"campaigns":[{"c":23,"g":1}],"type":"m"},"metricId":393026,"id":"metric"}]},{"triggers":["13465482"],"tags":[{"data":{"campaigns":[{"c":63,"g":5}],"type":"m"},"metricId":1420029,"id":"metric"}]},{"triggers":["3467935","3467937","3891148","3868378","3868381","3699280","3868375","3868372","3868366","3868369","3868363","3868360"],"tags":[{"priority":4,"data":"campaigns.23","id":"runCampaign"}]},{"triggers":["11218462"],"tags":[{"data":{"campaigns":[{"c":62,"g":3}],"type":"m"},"metricId":1109587,"id":"metric"}]},{"triggers":["3467935","3467937","3474327","3474329"],"tags":[{"priority":4,"data":"campaigns.26","id":"runCampaign"}]},{"triggers":["13465485"],"tags":[{"data":{"campaigns":[{"c":63,"g":6}],"type":"m"},"metricId":1420032,"id":"metric"}]},{"triggers":["10859356"],"tags":[{"data":{"campaigns":[{"c":52,"g":2}],"type":"m"},"metricId":1209280,"id":"metric"}]},{"triggers":["3926488","3926491","3926494","3926497","3926500","3926503","3926506","3926509"],"tags":[{"priority":4,"data":"campaigns.24","id":"runCampaign"}]},{"triggers":["11348713","11348716","11607274"],"tags":[{"priority":4,"data":"campaigns.50","id":"runCampaign"}]},{"triggers":["3474331"],"tags":[{"data":{"campaigns":[{"c":26,"g":1}],"type":"m"},"metricId":418573,"id":"metric"}]},{"triggers":["3891109"],"tags":[{"data":{"campaigns":[{"c":52,"g":3}],"type":"m"},"metricId":460042,"id":"metric"},{"data":{"campaigns":[{"c":23,"g":2}],"type":"m"},"id":"metric","metricId":460042}]},{"triggers":["10597825","10597828","10597831"],"tags":[{"priority":4,"data":"campaigns.53","id":"runCampaign"}]},{"triggers":["11348776"],"tags":[{"data":{"campaigns":[{"c":57,"g":2}],"type":"m"},"metricId":1246453,"id":"metric"}]},{"triggers":["3467935","3467937","4049039"],"tags":[{"priority":4,"data":"campaigns.33","id":"runCampaign"}]},{"triggers":["9"],"tags":[{"priority":2,"id":"visibilityService"}]},{"triggers":["2"],"tags":[{"id":"runTestCampaign"}]},{"triggers":["75"],"tags":[{"id":"urlChange"}]},{"triggers":["5"],"tags":[{"id":"checkEnvironment"}]},{"triggers":["8"],"tags":[{"priority":3,"id":"prePostMutation"},{"id":"groupCampaigns","priority":2}]}],pages:{"ec":[{"256778":{"inc":["o",["url","urlReg","(?i).*"]]}},{"567821":{"inc":["o",["url","urlReg","(?i).*https?\\:\\\/\\\/(w{3}\\.)?oclc\\.org.*"],["url","urlReg","(?i).*https?\\:\\\/\\\/(w{3}\\.)?blog\\.oclc\\.org.*"],["url","urlReg","(?i).*https?\\:\\\/\\\/(w{3}\\.)?policies\\.oclc\\.org.*"]]}}]},pagesEval:{"ec":[256778,567821]},stags:{}}})(); ;;var commonWrapper=function(argument){if(!argument){argument={valuesGetter:function(){return{}},valuesSetter:function(){},verifyData:function(){return{}}}}const getVisitorUuid=function(){if(window._vwo_acc_id>=1037725){return window.VWO&&window.VWO.get("visitor.id")}else{return window.VWO._&&window.VWO._.cookies&&window.VWO._.cookies.get("_vwo_uuid")}};var pollInterval=100;var timeout=6e4;return function(){var accountIntegrationSettings={};var _interval=null;function waitForAnalyticsVariables(){try{accountIntegrationSettings=argument.valuesGetter();accountIntegrationSettings.visitorUuid=getVisitorUuid()}catch(error){accountIntegrationSettings=undefined}if(accountIntegrationSettings&&argument.verifyData(accountIntegrationSettings)){argument.valuesSetter(accountIntegrationSettings);return 1}return 0}var currentTime=0;_interval=setInterval((function(){currentTime=currentTime||performance.now();var result=waitForAnalyticsVariables();if(result||performance.now()-currentTime>=timeout){clearInterval(_interval)}}),pollInterval)}}; commonWrapper({valuesGetter:function(){return {"ga4s":0}},valuesSetter:function(data){var singleCall=data["ga4s"]||0;if(singleCall){window.sessionStorage.setItem("vwo-ga4-singlecall",true)}var ga4_device_id="";if(typeof window.VWO._.cookies!=="undefined"){ga4_device_id=window.VWO._.cookies.get("_ga")||""}if(ga4_device_id){window.vwo_ga4_uuid=ga4_device_id.split(".").slice(-2).join(".")}},verifyData:function(data){if(typeof window.VWO._.cookies!=="undefined"){return window.VWO._.cookies.get("_ga")||""}else{return false}}})(); var pushBasedCommonWrapper=function(argument){var firedCamp={};if(!argument){argument={integrationName:"",getExperimentList:function(){},accountSettings:function(){},pushData:function(){}}}return function(){window.VWO=window.VWO||[];const getVisitorUuid=function(){if(window._vwo_acc_id>=1037725){return window.VWO&&window.VWO.get("visitor.id")}else{return window.VWO._&&window.VWO._.cookies&&window.VWO._.cookies.get("_vwo_uuid")}};var sendDebugLogsOld=function(expId,variationId,errorType,user_type,data){try{var errorPayload={f:argument["integrationName"]||"",a:window._vwo_acc_id,url:window.location.href,exp:expId,v:variationId,vwo_uuid:getVisitorUuid(),user_type:user_type};if(errorType=="initIntegrationCallback"){errorPayload["log_type"]="initIntegrationCallback";errorPayload["data"]=JSON.stringify(data||"")}else if(errorType=="timeout"){errorPayload["timeout"]=true}if(window.VWO._.customError){window.VWO._.customError({msg:"integration debug",url:window.location.href,lineno:"",colno:"",source:JSON.stringify(errorPayload)})}}catch(e){window.VWO._.customError&&window.VWO._.customError({msg:"integration debug failed",url:"",lineno:"",colno:"",source:""})}};var sendDebugLogs=function(expId,variationId,errorType,user_type){var eventName="vwo_debugLogs";var eventPayload={};try{eventPayload={intName:argument["integrationName"]||"",varId:variationId,expId:expId,type:errorType,vwo_uuid:getVisitorUuid(),user_type:user_type};if(window.VWO._.event){window.VWO._.event(eventName,eventPayload,{enableLogs:1})}}catch(e){eventPayload={msg:"integration event log failed",url:window.location.href};window.VWO._.event&&window.VWO._.event(eventName,eventPayload)}};const callbackFn=function(data){if(!data)return;var expId=data[1],variationId=data[2],repeated=data[0],singleCall=0,debug=0;var experimentList=argument.getExperimentList();var integrationName=argument["integrationName"]||"vwo";if(typeof argument.accountSettings==="function"){var accountSettings=argument.accountSettings();if(accountSettings){singleCall=accountSettings["singleCall"];debug=accountSettings["debug"]}}if(debug){sendDebugLogs(expId,variationId,"intCallTriggered",repeated)}if(singleCall&&(repeated==="vS"||repeated==="vSS")||firedCamp[expId]){return}window.expList=window.expList||{};var expList=window.expList[integrationName]=window.expList[integrationName]||[];if(expId&&variationId&&["VISUAL_AB","VISUAL","SPLIT_URL"].indexOf(_vwo_exp[expId].type)>-1){if(experimentList.indexOf(+expId)!==-1){firedCamp[expId]=variationId;var visitorUuid=getVisitorUuid();var pollInterval=100;var currentTime=0;var timeout=6e4;var user_type=_vwo_exp[expId].exec?"vwo-retry":"vwo-new";var interval=setInterval((function(){if(expList.indexOf(expId)!==-1){clearInterval(interval);return}currentTime=currentTime||performance.now();var toClearInterval=argument.pushData(expId,variationId,visitorUuid);if(debug&&toClearInterval){sendDebugLogsOld(expId,variationId,"",user_type);sendDebugLogs(expId,variationId,"intDataPushed",user_type)}var isTimeout=performance.now()-currentTime>=timeout;if(isTimeout&&debug){sendDebugLogsOld(expId,variationId,"timeout",user_type);sendDebugLogs(expId,variationId,"intTimeout",user_type)}if(toClearInterval||isTimeout){clearInterval(interval)}if(toClearInterval){window.expList[integrationName].push(expId)}}),pollInterval||100)}}};window.VWO.push(["onVariationApplied",callbackFn]);window.VWO.push(["onVariationShownSent",callbackFn])}}; var validationUtils={exists:function(path){try{const parts=path.split(".");let current=window;for(const part of parts){if(current[part]===undefined){return false}current=current[part]}return true}catch(e){return false}},safeExecute:function(path,args=[]){try{const parts=path.split(".");let current=window;for(const part of parts){if(current[part]===undefined){return false}current=current[part]}if(typeof current!=="function"){return false}return current(...args)}catch(e){return false}},validateAll:function(paths){return paths.every(path=>this.exists(path))}}; var surveyDataCommonWrapper=function(argument){if(!argument){argument={getCampaignList:function(){return[]},surveyStatusChange:function(){},answerSubmitted:function(){}}}return function(){window.VWO=window.VWO||[];function getValuesFromAnswers(answers){var values=[];for(var i=0;i