如果這樣有BUG嗎?
?//第一步把之前的數據寫成一個數組的形式,定義變量為 infos
? 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
?
? document.write(infos[0][1]+"<br>")
??
?for(var i=0;i<infos.length;i++){
? ? if(infos[i][1]=="女" && infos[i][3]=="大一"){
? ? ? ? ? document.write(infos[i][0]+"<br>")? ? }
? }
? 這樣有錯嗎?
2015-09-06
運用了與邏輯操作符,是可以的;