<!DOCTYPE HTML><html><head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> <title>編程題</title> <script type="text/javascript"> var 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'] ?]; /*document.write("篩選之后："+"<br/>"); ? for(i=0;i<=infos.length;i++){ if(infos[i][3]=="大一" && infos[i][1]=="女"){ document.write(infos[i]+"<br/>"); } }*/ var n=0; var arr=new Array(); for(i=0;i<=infos.length;i++){ if(infos[i][3]=="大一" ){ document.write(infos[i]+"<br/>"); arr[n]=infos[i]; n++; } } for(var n=0;n<arr.length;n++){ if(arr[n][1]=="女"){ document.write(arr[n]+"<br/>"); } } </script></head><body><body></html>
第二次篩選為什么篩選不出來？
qq_禁滅生_03414590
2017-02-06 09:40:57
