18秋北理工《脚本程序设计》在线作业辅导资料

18秋北理工《脚本程序设计》在线作业辅导资料

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时间:2018-10-22

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1、18秋北理工《脚本程序设计》在线作业1、B2、D3、B4、A5、A一、单选题共20题,40分1、password对象的()属性表示password中的默认值。AnameBdefaultValueCtypeDvalue正确答案是:B2、location对象中用来表示了完整的URL地址的属性是()。AhashBhostnameCpathnameDhref正确答案是:D3、在JavaScript语言中,onChange事件不是()对象上的事件。ASelectBdocumnetCTextDTextarea正确答案是:B4、赋值运算符的作用是什么?A给一个变量赋新值B给一个变量赋予

2、一个新名C执行比较运算D没有任何用处正确答案是:A5、语句for(i=1;j<=10;i=i+3)for(j=2;j<6;j++){...}的循环次数是()。A16B18C14D12正确答案是:A6、当鼠标指针移动到页面上的一个对象上时,就会触发()。AonMouseUp事件BonMouseOver事件ConMouseDown事件DonMouseMove事件正确答案是:B7、Cookie的()属性用来指定Cookie的过期时间。ANameBValueCExpiresDsecure正确答案是:C8、在以下选项中,可用于分支结构和循环结构的语句是()。AbreakBconti

3、nueCbreak与continueD以上选项均错正确答案是:C9、下面()对象代表浏览器窗口中加载的当前文档的URL。AwindowBdocumentClocationDhistory正确答案是:C10、在JavaScript语言中,event对象用于描述一个JavaScript程序中的()。A对象B程序C事件D以上选项均错正确答案是:C11、JavaScript语言程序文件的扩展名是()。AjavaBscriptCjsDPrg正确答案是:C12、在以下选项中,函数定义时可以省略的部分是()。A函数名B函数参数C函数体D表示函数的圆括号正确答案是:B13、在以下选项中,

4、不属于原始数据类型的是()。A数值类型B布尔类型C对象类型D字符串类型正确答案是:C14、下列弹出信息提示的语句是()。Awindow.alertBwindow.closeCdocument.alertDdocument.open正确答案是:A15、写“HelloWorld”的正确javascript语法是()。Adocument.write("HelloWorld")B"HelloWorld"Cresponse.write("HelloWorld")D("HelloWorld")正确答案是:A16、下面()对象代表浏览器的历史列表,使用户可以跟踪窗口中曾经使用过的URL

5、。AwindowBdocumentClocationDhistory正确答案是:D17、设”vara=10;”,则执行完语句”a*=5;”后,a的值是()。A12B50C15D28正确答案是:B18、标记应用于下列哪组标记之间()。A…B…C…D…</title正确答案是:B19、XMLHttpRequest对象中()属性能够说明请求是否成功。AstatusBreadyStateCsuccessDstatusText正确答案是:A20、在以下选项中,最大的常量值是()。</p><p>6、A020B0x20C31D32正确答案是:D二、判断题共20题,40分1、Javascipt没有提供任何对象为事件提供细节信息。()A错误B正确正确答案是:A2、页面上显示一个超链接的字符串,当鼠标经过或者停留在这个字符串上,将触发A错误B正确正确答案是:A3、JavaScript语言利用image对象可以动态地对图像进行操作。()A错误B正确正确答案是:B4、在JavaScript中只允许使用预定义的函数,而不能自定义函数。()A错误B正确正确答案是:A5、switch语句中的case后面的语句块即使使用了多条语句,也不能使用大括号。()A错误B正确正确答案是:B6、J</p><p>7、avaScript中的变量不区分大小写。()A错误B正确正确答案是:A7、"二零四"*"一零八"是合法的表达式。()A错误B正确正确答案是:A8、throw语句抛出一个异常,并对该异常进行处理。()A错误B正确正确答案是:A9、JavaScript的函数定义允许嵌套,即在函数中可以定义另一个函数。()A错误B正确正确答案是:B10、所有浏览器将XMLHttpRequest对象当成一个本地JavaScript对象处理的。()A错误B正确正确答案是:A11、Cookie是一小段文本,用于存储与某个特定网页或网站相关的信息,但不与某</p> </div> <div class="mt-3 bg-white"> <div class="d-lg-block d-none px-3 px-lg-4 py-3 border-bottom text-center font-18"> 当前文档最多预览五页,下载文档查看全文 </div> <div class="detail-fixed-feature 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