单项选择题
A.Math.ceil(2,4) B.Math.max(2,4) C.ceil(2,4) D.top(2,4)
定义JavaScript数组的正确方法是？（）A.var txt = new Array="tim","kim...
单项选择题定义JavaScript数组的正确方法是？（）
A.var txt = new Array="tim","kim","jim" B.var txt = new Array(1:"tim",2:"kim",3:"jim") C.var txt = new Array("tim","kim","jim") D.var txt = new Array:1=("tim")2=("kim")3=("jim")
如何在JavaScript中添加注释？（）A. This is a commentB.< !--This is...
单项选择题如何在JavaScript中添加注释？（）
A.' This is a commentB.< !--This is a comment-->C.//This is a comment
for循环如何开始？（）A.for (i <= 5; i++)B.for (i = 0; i <= 5; i+...
单项选择题for循环如何开始？（）
A.for (i <= 5; i++) B.for (i = 0; i <= 5; i++) C.for (i = 0; i <= 5) D.for i = 1 to 5
