• 2022-06-08 问题

    下列代码[br][/br] 1 2 3 4 5 6 7 var person={fname:"John",lname:"Doe",age:25}; var txt=""; for (x in person) { txt=txt + person[x]; } alert(txt); 输出为? A: JohnDoe25 B: fname:"John",lname:"Doe",age:25 C: fname:John,lname:Doe,age:25 D: fnamelnameage

    下列代码[br][/br] 1 2 3 4 5 6 7 var person={fname:"John",lname:"Doe",age:25}; var txt=""; for (x in person) { txt=txt + person[x]; } alert(txt); 输出为? A: JohnDoe25 B: fname:"John",lname:"Doe",age:25 C: fname:John,lname:Doe,age:25 D: fnamelnameage

  • 2022-06-08 问题

    以下代码片段执行后,text的值为:( )var person = {fname:"Bill", lname:"Gates", age:62};var text = "";for (var x in person) { text += person[x];} A: BillGates62 B: fname:"Bill", lname:"Gates", age:62 C: BillGates D: 62

    以下代码片段执行后,text的值为:( )var person = {fname:"Bill", lname:"Gates", age:62};var text = "";for (var x in person) { text += person[x];} A: BillGates62 B: fname:"Bill", lname:"Gates", age:62 C: BillGates D: 62

  • 2022-06-08 问题

    以下代码片段执行后,text的值为:( )var person = {fname:"Bill", lname:"Gates", age:62};var text = "";for (var x in person) { text += person[x];} A: BillGates62 B: fname:"Bill", lname:"Gates", age:62 C: BillGates D: 62

    以下代码片段执行后,text的值为:( )var person = {fname:"Bill", lname:"Gates", age:62};var text = "";for (var x in person) { text += person[x];} A: BillGates62 B: fname:"Bill", lname:"Gates", age:62 C: BillGates D: 62

  • 2021-04-14 问题

    下面的代码: varperson={fname:'Bill',lname:'Gates',age:62}; vartext=''; for(varxinperson){ text+=person[x]; } 循环结束后,text的值为:()

    下面的代码: varperson={fname:'Bill',lname:'Gates',age:62}; vartext=''; for(varxinperson){ text+=person[x]; } 循环结束后,text的值为:()

  • 2021-04-14 问题

    下面的代码: var person = {fname:'Bill', lname:'Gates', age:62}; var text = ''; for (var x in person) { text += person[x]; } 循环结束后,text的值为:( )

    下面的代码: var person = {fname:'Bill', lname:'Gates', age:62}; var text = ''; for (var x in person) { text += person[x]; } 循环结束后,text的值为:( )

  • 2022-06-17 问题

    下面的代码: var person = {fname:'Bill', lname:'Gates', age:62}; var text = ''; for (var x in person) { text += person[x]; } 循环结束后,text的值为:( )

    下面的代码: var person = {fname:'Bill', lname:'Gates', age:62}; var text = ''; for (var x in person) { text += person[x]; } 循环结束后,text的值为:( )

  • 2022-06-08 问题

    下面的代码:varperson={fname:"Bill",lname:"Gates",age:62};vartext="";for(varxinperson){text+=person[x];}循环结束后,text的值为:() A: BillGates62 B: Bill C: Gates D: 62

    下面的代码:varperson={fname:"Bill",lname:"Gates",age:62};vartext="";for(varxinperson){text+=person[x];}循环结束后,text的值为:() A: BillGates62 B: Bill C: Gates D: 62

  • 2022-06-17 问题

    下面的代码:var person = {fname:"Bill", lname:"Gates", age:62}; var text = "";for (var x in person) { text += person[x];}循环结束后,text的值为:( )。 A: Gates B: BillGates62 C: 62 D: Bill

    下面的代码:var person = {fname:"Bill", lname:"Gates", age:62}; var text = "";for (var x in person) { text += person[x];}循环结束后,text的值为:( )。 A: Gates B: BillGates62 C: 62 D: Bill

  • 2022-06-08 问题

    下面的代码:var person = {fname:"Bill", lname:"Gates", age:62}; var text = "";for (var x in person) { text += person[x];}循环结束后,text的值为:( )。 A: Gates B: BillGates62 C: 62 D: Bill

    下面的代码:var person = {fname:"Bill", lname:"Gates", age:62}; var text = "";for (var x in person) { text += person[x];}循环结束后,text的值为:( )。 A: Gates B: BillGates62 C: 62 D: Bill

  • 2022-10-24 问题

    下面的代码:var person = {fname:"Bill", lname:"Gates", age:62}; var text = "";for (var x in person) { text += person[x];}循环结束后,text的值为:( )。 A: Gates B: BillGates62 C: 62 D: Bill

    下面的代码:var person = {fname:"Bill", lname:"Gates", age:62}; var text = "";for (var x in person) { text += person[x];}循环结束后,text的值为:( )。 A: Gates B: BillGates62 C: 62 D: Bill

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