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求助数组的问题

来源：4-10 编程练习

qq_不像白羊座的白羊座_0

2015-10-26 10:55

<!DOCTYPE HTML>

<html >

<head>

<title>流程控制语句</title>

var infos=new Array;

infos=[["小A","女""21","大一"],

["小B","男""23","大三"],

["小C","男""24","大四"],

["小D","女""21","大一"],

["小E","女""22","大四"],

["小F","男""21","大一"],

["小G","女""22","大二"],

["小H","女""20","大三"],

["小I","女""20","大一"],

["小J","男""20","大三"]

]

//第一步把之前的数据写成一个数组的形式,定义变量为 infos

for(i=0;i<infos.length;i++)

{if(infos[i][3])=="大一"&&infos[i][1]=="女"){

document.write(infos[i][0])

}}

//第一次筛选，找出都是大一的信息

//第二次筛选，找出都是女生的信息

</script>

</head>

<body>

</body>

</html>

没有输出名字啊

写回答关注

2回答

出世Sunny

2015-10-28 09:57:59

数组第二项和第三项之间的逗号没有了

0 0
心悦君夕

2015-10-27 11:12:58

nfos=[["小A","女""21","大一"],
["小B","男""23","大三"],
["小C","男""24","大四"],
["小D","女""21","大一"],
["小E","女""22","大四"],
["小F","男""21","大一"],
["小G","女""22","大二"],
["小H","女""20","大三"],
["小I","女""20","大一"],
["小J","男""20","大三"]
]
这写的对吗？仔细看看

0 0

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