<!DOCTYPE ?HTML><html ><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>流程控制語(yǔ)句</title><script type="text/javascript">?var infos = new Array[['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 < 10;i++){? ? if(infos[i][3] == "大一" && infos[i][1] == "女")? ? {? ? ? ? document.write(infos[i][0]+"<br/>");? ? }? ? else? ? {? ? ? ? alert("沒(méi)有");? ? }}??</script></head><body></body></html>為什么輸不出結(jié)果？求教??！
javascript進(jìn)階篇 4-10編程練習(xí)
慕粉4038357
2016-10-11 19:52:02