[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fYWHXErtvB3MnMhErijLLeTUPpgpSi0ANR9m2UiLGz4g":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-05-12 10:19:23",7213126,[8,9,10,11],"$("#header ul li:eq(3)").css("color","red")","$("#header li:eq(3)").css("color","red")","$("#header li:last").css("color","red")","$"#header li:gt(3)").css("color","red")",{"courseId":13,"courseImg":14,"courseName":15},"cdea90c17c2b243c7d76163642661ae7","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffb4e0e6a5574c0a2bea5a3691ff957f7.jpg","前端开发技术(2021级)","在HTML页面中有如下结构的代码: <div id=""header""> <h3> <span>S3N认证考试<\u002Fspan> <\u002Fh3> <ul> <li>一<\u002Fli> <li>二<\u002Fli> <li>三<\u002Fli> <li>四<\u002Fli> <\u002Ful> <\u002Fdiv> 请问下面哪一个选项所示的jQuery代码,不能够让汉字"四"的颜色变成红色",[18,29,38,47,56,65,74,77,86,95],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],7213120,[22,23,24,25],"jQuery是一个JavaScript函数库","jQuery极大地简化了JavaScript编程","jQuery的核心功能不是根据选择器查找HTML元素,然后对这些元素执行相应的操作","jQuery的宗旨是"write less,do more"","下面关于jQuery的描述错误的是哪一项","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],7213121,[33,34,35,36],"$("div")[0]","$('div').eq(0)","$('div')[0]","$('div').eq(0)[0]","jQuery中$("div").get(0)与下面哪一个写法不是等价的",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],7213122,[42,43,44,45],"0","1","2","3","案例代码如下: $(document).ready(function(){ alert("Hello1"); }); $(document).ready(function(){ alert("Hello2"); }); 代码执行后,会弹出几次警告提示框",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],7213123,[51,52,53,54],"$("div[class^='A'][id]")选择属性class以"A"开始的div元素","$("div[class$='C']")选择属性class为以"C"结尾的div元素","$("div[id*='B']")选择属性id包含"B"的div元素","$("div[class='A'][id$='1']")选择属性class为"A"且id属性以"1"结尾的div元素","下面描述哪一项是错误的",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],7213124,[60,61,62,63],"$("ul li:gt(5):not(:last)")选取ul标记里面索引值大于5且不是最后一个的li元素","$("div.showmore > a")选取class属性值为showmore的div元素的子元素a","$("div").find("span")选取div元素的子元素span","$("ul li").filter(":contains('佳能'),:contains('尼康'),:contains('奥林巴斯')")选取文本包含佳能或尼康或奥林巴斯的li元素","下面哪一项描述是错误的",{"answer":66,"createTime":5,"id":67,"options":68,"question":73,"source":27,"type":28},[],7213125,[69,70,71,72],"two","one","three","<div><p>two<\u002Fp><\u002Fdiv>","有如下HTML 代码: <p>one<\u002Fp> <div><p>two<\u002Fp><\u002Fdiv> <p>three<\u002Fp> 则jQuery 程序中的代码: $("div>p")选择的是哪些元素?( )",{"answer":75,"createTime":5,"id":6,"options":76,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":27,"type":28},[],7213127,[81,82,83,84],"this.style.fontSize=index*5+10+"px"","$(this).css("fontSize",index*5+10+"px")","$(this).css("font-size",index*5+10+"px")","$(this).css(font-size,index*5+10+"px")","有如下代码:<script>$(function(){ $("ul>li").css("background-color","red") $("ul>li").each(function(index,val){ val.style.fontSize=index*5+10+"px"; $(this).css("opacity",(index+1)\u002F10); });});<\u002Fscript>从下面四个选项中选出不能与划线语句等价的语句",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":27,"type":28},[],7213128,[90,91,92,93],"parent()方法可以获取匹配元素的父级元素","parents()方法可以获取匹配元素的祖先元素","closest()方法从元素本身开始,逐级向上级元素匹配,并返回最先匹配的元素","find()方法用来获取匹配元素的子元素","在jQuery中,下面哪一项描述是错误的",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":27,"type":28},[],7213129,[99,100,101,102],"$(".txt").val()","$(".txt").attr("value")","$("#txtContent").text()","$("#txtContent").attr("value")","有以下标签:<input id="txtContent" class="txt" type="text" value="张三"\u002F> 请问不能够正确的获取文本框里面的值"张三"的语句是哪一项"]