<!DOCTYPE HTML>
<html >
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>流程控制语句</title>
<script type="text/javascript">
var infos=[
['小A','女','21','大一'],
['小C','男','24','大四'],
['小B','男','23,''大三'],
['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','大三'],
['小J','男','20','大三']
]
for( var i=o;i<infos.length;i++)
{
if(infos[i][3]=="大一"&&infos[i][1]=="女")
{document.write(infos[i][0]+"<br/>")}
}
<!DOCTYPE HTML> <html > <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>流程控制语句</title> <script type="text/javascript"> var infos=[ ['小A','女','21','大一'], ['小C','男','24','大四'], ['小B','男','23','大三'], ['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','大三'], ['小J','男','20','大三'] ]; for( var i=0;i<infos.length;i++) { if(infos[i][3]=="大一"&&infos[i][1]=="女") {document.write(infos[i][0]+"<br/>");} } </script> </head> <body> </body> </html>
['小A','女','21','大一'],小A后面逗号是中文逗号。 ['小B','男','23,''大三'],23的引号写出来了。另外建议每一句后面还是加加分号吧。上面是修改后代码。
下半部分呢?