单选题

下列代码输出为？varperson={fname:"John",lname...

Question

下列代码输出为？

	var person={fname:"John",lname:"Doe",age:25}



	var txt=""



	for (x in person){



	  txt=txt + person[x]



	}



	alert(txt)

A. JohnDoe25

B. fname:"John",lname:"Doe",age:25

C. fname:John,lname:Doe,age:25

D. fnamelnameage