[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fi7EWgULxRWFXfmoc4YpCsA-ikvEBd_pWlBHewpooD38":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-03-17 17:51:45",179429177,[8,9,10,11],"2,1","2,2","2,undefined","1,1",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},14,"30f57dd1eaa125dce783f8829c816a5b","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5d6c811cd9826c97b88a887e79604e42.jpg","动态网页脚本技术-23软工123","e39a0286e5fa4b68a35d733887b63c5f","函数","以下代码执行后,两次弹窗分别弹出来的值是 var num1 = 1; function testf1() { num1 = 2; alert(num1); } function testf2() { alert(num1); } testf1(); testf2()",[21,33,42,51,60,69,77,80,88,97],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-03-17 17:51:44",179429171,[26,27,28,29],"f1,2","f(1)","f(1,2)","f(,2)","如果有函数定义function f(x,y){…},那么以下正确的函数调用是( )","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":32},[],179429172,[37,38,39,40],"0","1","2","任意","定义函数时,在函数名后面的圆括号内可以指定( )个参数",{"answer":43,"createTime":23,"id":44,"options":45,"question":50,"source":31,"type":32},[],179429173,[46,47,48,49],"逗号","句号","分号","空格","函数的参数之间必须用( )分隔",{"answer":52,"createTime":23,"id":53,"options":54,"question":59,"source":31,"type":32},[],179429174,[55,56,57,58],"函数必须有返回值","必须指定函数参数的数据类型","必须指定函数的返回值类型","以上都不对","下列关于自定义函数的说法正确的是",{"answer":61,"createTime":23,"id":62,"options":63,"question":68,"source":31,"type":32},[],179429175,[64,65,66,67],"NaN","15.6","15","16","parseInt("15.6a"); 的结果是",{"answer":70,"createTime":5,"id":71,"options":72,"question":76,"source":31,"type":32},[],179429176,[73,74,75,58],"true","false","null","isNaN(123) 的结果是",{"answer":78,"createTime":5,"id":6,"options":79,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":81,"createTime":5,"id":82,"options":83,"question":87,"source":31,"type":32},[],179429178,[38,84,85,86],"程序报错","alert(1)","undefined","以下代码运行后,结果为( ) fn1(); var fn1 = function(a){ alert(a); }",{"answer":89,"createTime":5,"id":90,"options":91,"question":96,"source":31,"type":32},[],179429179,[92,93,94,95],"1,undefined","undefined,undefined","1,function fn1() { alert(1); }","function fn1() { alert(1); },undefined","下面代码的运行结果是: function fn1() { alert(1); } alert( fn1() )",{"answer":98,"createTime":5,"id":99,"options":100,"question":102,"source":31,"type":32},[],179429180,[39,38,101,86],"3","var x = 1; function fn(n){n = n+1}; y = fn(x); y 的值为( )"]