[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPTACxLOlDxnGfx8d-scQcgaiw22xr6LtAEh0omCvDzg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":67},[],"2024-06-28 19:53:05",98079112,[8,9,10,11],"上午好","中午好","下午好","晚上好",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},28,"fc1ed98b21f69ada64db61317954d6b9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F37f0b49bae4778017115568798e6ed29.webp","JavaScript和Jquery开发技术（第7期）","0e605934ba494f6f9461b28248d086dc","任务1.2 制作仿学习通登录码验证-测试","下列程序的输出结果是什么? var hour=8; if (hour>8 && hour<=12){ alert("上午好!"); }else if (hour>12 && hour<=14){ alert("中午好!"); }else if (hour>14&& hour<=18){ alert("下午好!"); }else{ alert("晚上好!"); }",[21,33,42,49,58,68,77,84,92,101],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2023-09-23 21:53:30",98079102,[26,27,28,29],"if语句","if…else语句","if…else if…语句","switch语句","选择结构常用的语句包括()","v1",1,{"answer":34,"createTime":35,"id":36,"options":37,"question":41,"source":31,"type":32},[],"2023-09-23 21:53:31",98079104,[38,39,40],"while循环","do while循环","for循环","循环结构常用的结构有()",{"answer":43,"createTime":35,"id":44,"options":45,"question":48,"source":31,"type":32},[],98079105,[46,47],"不指定函数名的函数","指定函数名的函数","函数定义的方式有()",{"answer":50,"createTime":35,"id":51,"options":52,"question":57,"source":31,"type":32},[],98079106,[53,54,55,56],"简单调用函数","在表达式中调用函数","在事件响应中调用函数","通过超链接调用函数","函数调用的方式有()",{"answer":59,"createTime":5,"id":60,"options":61,"question":66,"source":31,"type":67},[],98079107,[62,63,64,65],"40","50","5","10","在JavaScript中,运行下面的代码后,sum的值是() var sum=0; for(i=1;i<10;i++){ if(i%5==0) break; sum=sum+i; }",0,{"answer":69,"createTime":70,"id":71,"options":72,"question":76,"source":31,"type":67},[],"2023-12-27 18:53:52",98079108,[73,74,75],"onclick ="ok()"","onmouseout="ok()"","onmouseover="ok()"","通过单击鼠标调用函数ok()的语句格式是()",{"answer":78,"createTime":5,"id":79,"options":80,"question":83,"source":31,"type":67},[],98079109,[65,81,82,62],"20","30","以下选择程序的输出结果是什么 var a,b,c,maxValue; a=10; b=20; c=30; maxValue=a; if(maxValue<b){ maxValue=b; } if(maxValue<c){ maxValue=c; } alert(maxValue)",{"answer":85,"createTime":86,"id":87,"options":88,"question":91,"source":31,"type":67},[],"2023-12-27 18:53:53",98079110,[89,81,90,65],"undifine","0","以下程序的输出结果是什么? let a,b,c; a=10; b=20; if(a<b){ c = b; } else{ c = a; } alert(c)",{"answer":93,"createTime":5,"id":94,"options":95,"question":100,"source":31,"type":67},[],98079111,[96,97,98,99],"2014年2月份的天数为29天","2014年2月份的天数为28天",""2014年2月份的天数为"+month+"天"","2014年2月份的天数为0天","下列程序的输出结果是什么? var year=2024; var month=0; if((year%4==0 && year%100!=0)||year%400==0){ month=29; }else{ month=28; } alert("2024年2月份的天数为"+month+"天")",{"answer":102,"createTime":5,"id":6,"options":103,"question":19,"source":31,"type":67},[],[8,9,10,11]]