求一個(gè)二維數(shù)組的例子
第四章有一個(gè)編程的練習(xí)，求一段二維數(shù)組的例子
慕粉3568268
2016-08-19
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2019-08-08
?for(var i=0;i<infos.length;i++){
? ?? ?if(infos[i][3]=="大一"&&infos[i][1]=='女'){
? ?? ??? ?document.write(infos[i] +'<br>');
? ?? ?}
? }
2016-10-27
? ? 對(duì)于二維數(shù)組，一臉懵逼。T.T
? 如果學(xué)會(huì)了JavaScript，連帶著函數(shù)等等都學(xué)會(huì)了一些。
2016-10-26
var arr = [['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(arr.length);
for(var i = 0; i < arr.length; i++)
{
???? if(arr[i][3] == '大一' && arr[i][1] == '女')
???? {
???????? document.write(arr[i][0] + "<br>");
????? }
}
2016-08-19
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"]];
?
?//第一次篩選，找出都是大一的信息
for(var i=0; i<infos.length; i++)
{
??? if(infos[i][3] =='大一' && infos[i][1] == '女')
??? {
??????? document.write( infos[i][0] );
??? }
}