当前位置: 首页 > 图文教程 > 网络编程 > Javascript > 称三次从12球中找出唯一但不知轻重的球

Javascript
JavaScript 语言精粹学习笔记
有关div页面拖动、缩放、关闭、遮罩效果代码
JQuery this 和 $(this) 的区别
JS 时间显示效果代码
jquery 表单进行客户端验证demo
JS 获取span标签中的值的代码 支持ie与firefox
JavaScript 获取用户客户端操作系统版本
可以读取EXCEL文件的js代码
JS去除字符串的空格增强版(可以去除中间的空格)
监控用户是否关闭浏览器的js代码
javascript 继承实现方法
JSON 入门指南 想了解json的朋友可以看下
javascript 函数调用规则
动态表格Table类的实现
JSON 客户端和服务器端的格式转换
jQuery ui1.7 dialog只能弹出一次问题
javascript 遍历验证所有文本框的值
关于IE、Firefox、Opera页面呈现异同 写脚本很痛苦
javascript 简练的几个函数
csdn 博客中实现运行代码功能实现

Javascript 中的 称三次从12球中找出唯一但不知轻重的球


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-08-10   浏览: 220 ::
收藏到网摘: n/a

在12个小球中有一个和其他不同(或轻或重),现在先拿起笔,记下哪个球重或者轻,然后继续下面的游戏<br>
<select name=one></select>
<select name=two></select>
<select name=three></select>
<select name=four></select>

<script>
var arrSel=["one","two","three","four"];//arrSel定义了要修改的下拉框
var i=0,arrData=[];//arrData中搁的是数据,每条都显示各级的数据
arrData[i++]=["(1,2,3,4)比(5,6,7,8)","请先做前面的选择","请先做前面的选择","请先做前面的选择"]
arrData[i++]=["重","(1,2,5)比(3,6,9)","请先做前面的选择","请先做前面的选择"]
arrData[i++]=["重","重","(1)比(2)","请先做前面的选择"]
arrData[i++]=["重","重","重","1球比较重"]
arrData[i++]=["重","重","平","6球比较轻"]
arrData[i++]=["重","重","轻","2球比较重"]
arrData[i++]=["重","平","(7)比(8)","请先做前面的选择"]
arrData[i++]=["重","平","重","8球比较轻"]
arrData[i++]=["重","平","平","4球比较重"]
arrData[i++]=["重","平","轻","7球比较轻"]
arrData[i++]=["重","轻","(1)比(3)","请先做前面的选择"]
arrData[i++]=["重","轻","重","无解"]
arrData[i++]=["重","轻","平","5球比较轻"]
arrData[i++]=["重","轻","轻","3球比较重"]
arrData[i++]=["平","(9,10)比(1,11)","请先做前面的选择","请先做前面的选择"]
arrData[i++]=["平","重","(9)比(10)","请先做前面的选择"]
arrData[i++]=["平","重","重","9球比较重"]
arrData[i++]=["平","重","平","10球比较重"]
arrData[i++]=["平","重","轻","11球比较轻"]
arrData[i++]=["平","平","(1)比(12)","请先做前面的选择"]
arrData[i++]=["平","平","重","12球比较轻"]
arrData[i++]=["平","平","平","无解"]
arrData[i++]=["平","平","轻","12球比较重"]
arrData[i++]=["平","轻","(9)比(10)","请先做前面的选择"]
arrData[i++]=["平","轻","重","9球比较轻"]
arrData[i++]=["平","轻","平","10球比较轻"]
arrData[i++]=["平","轻","轻","11球比较重"]
arrData[i++]=["轻","(1,2,5)比(3,6,9)","请先做前面的选择","请先做前面的选择"]
arrData[i++]=["轻","重","(1)比(3)","请先做前面的选择"]
arrData[i++]=["轻","重","重","3球比较轻"]
arrData[i++]=["轻","重","平","5球比较重"]
arrData[i++]=["轻","重","轻","无解"]
arrData[i++]=["轻","平","(7)比(8)","请先做前面的选择"]
arrData[i++]=["轻","平","重","7球比较重"]
arrData[i++]=["轻","平","平","4球比较轻"]
arrData[i++]=["轻","平","轻","8球比较重"]
arrData[i++]=["轻","轻","(1)比(2)","请先做前面的选择"]
arrData[i++]=["轻","轻","重","2球比较轻"]
arrData[i++]=["轻","轻","平","6球比较重"]
arrData[i++]=["轻","轻","轻","1球比较轻"]
</script>
<script>
function qswhInit(num){
/******* by qiushuiwuhen(2002-5-15) ********/
 var i,j,arrTemp=[];
 for(i=0;i<num;i++)arrTemp[i]=document.all(arrSel[i]).options[document.all(arrSel[i]).selectedIndex].text
 if(num==arrSel.length){//这里处理最后的数据。
  return;
 }
 with(document.all(arrSel[num])){
  length=0
  for(i=0;i<arrData.length;i++){  
   for(j=0;j<num;j++)if(arrTemp[j]!=arrData[i][j])break;
   if(j!=num)continue;
   if(length==0||options[length-1].text!=arrData[i][num])
   options[length++].text=arrData[i][num];
  }
  onchange=new Function("qswhInit("+(num+1)+")");
  onchange();
 }
}
qswhInit(0);//初始化
</script>