18春北理工《脚本程序设计》在线作业-2

18春北理工《脚本程序设计》在线作业-2

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时间:2018-04-02

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1、18春北理工《脚本程序设计》在线作业1、D2、B3、B4、B5、C一、单选题共20题,40分1、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:D2、标记应用于下列哪组标记之间()。A…B…C…D…</title正确答案是:B3、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:B4、password对象的()属性表示password中的默认值。</p><p>2、AnameBdefaultValueCtypeDvalue正确答案是:B5、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:C6、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:A7、写“HelloWorld”的正确javascript语法是()。Adocument.write("HelloWorld")B"HelloWorld"Cresponse.write("HelloWorld")D("HelloW</p><p>3、orld")正确答案是:A8、在以下选项中,可正确表示字符串长度的属性引用是()。Astr.lengthBstr->lengthCstr-lengthDstr>length正确答案是:A9、设”vara=10;”,则执行完语句”a*=5;”后,a的值是()。A12B50C15D28正确答案是:B10、JavaScript语言程序文件的扩展名是()。AjavaBscriptCjsDPrg正确答案是:C11、在以下选项中,不属于JavaScript语言特点的是()。A基于对象B跨平台C编译执行D脚本语言正确答案是:C12、赋值运算符的作用是什么?A给一个变量赋新值B给一个变量赋予一个</p><p>4、新名C执行比较运算D没有任何用处正确答案是:A13、下列弹出信息提示的语句是()。Awindow.alertBwindow.closeCdocument.alertDdocument.open正确答案是:A14、javascript程序中不是三大程序结构的是()。A表达式B顺序结构C条件分支结构D循环结构正确答案是:A15、Cookie的()属性用来指定Cookie的过期时间。ANameBValueCExpiresDsecure正确答案是:C16、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:C1</p><p>5、7、设”varvarc=2008;”,则执行完语句document.write(typeof(d));后,输出结果是()。AnumberBstringCobjectDundefined正确答案是:D18、AJAX中的A代表()。A高级B异步性C应用D同步性正确答案是:B19、在JavaScript语言中,onChange事件不是()对象上的事件。ASelectBdocumnetCTextDTextarea正确答案是:B20、下面哪一个不是浮点数()。A-439.35B3.17C10D-7e11正确答案是:C二、判断题共20题,40分1、continue语句的作用是终止当次循环,跳</p><p>6、转到循环的开始处继续下一轮循环。()A错误B正确正确答案是:B2、JavaScript是一种解释型脚本语言。()A错误B正确正确答案是:B3、fileUpload对象代表HTML表单中用于文件上传的输入元素,包含一个文本框。A错误B正确正确答案是:A4、CSS的GLOW滤镜能产生24种动态效果。()A错误B正确正确答案是:A5、删除Cookie即把存储在客户端硬盘中的Cookie文件直接删除。()A错误B正确正确答案是:A6、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:A7、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><p>7、个特定网站关联在一起。()A错误B正确正确答案是:A8、while循环语句中循环体至少执行一次。()A错误B正确正确答案是:A9、在定义JavaScript变量时,一定要指出变量名和值。()A错误B正确正确答案是:A10、表达式的类型只取决于运算符,与操作数无关。()A错误B正确正确答案是:A11、location对象用来记录浏览器窗口中加载的文档的URL历史记录。()A错误B正确正确答案是:A12、CSS的RevealTrans滤镜是发光滤镜。()A错误B正确正确答案是:A13</p> 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