?//第一步把之前的數(shù)據(jù)寫成一個數(shù)組的形式,定義變量為?infos
?var?myarr?=?[['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']];
?
?for(var?i=0;?i<myarr.length;?i++){
????var?arr?=?new?Array();
????arr?=?myarr[i];
????if(arr[3]?==?"大一"?&&?arr[1]?==?"女"){
????????document.write("("?+?arr?+?")");??
????}
?}