出鬼了，javascript无法获取对象的值，都是undefined…… 这是怎么回事……

Question

代码如下：var zzslArr = zzflArr = {};
zzslArr[1] = {"baidu":9610000,"baidu_date":"2011-6-1","google":193000000,"yahoo":"0","soso":"87,000,000"};
zzflArr[1] = {"baidu_r":"45,600,000","google_r":"170","yahoo_r":"463,332","soso_r":"87,000,000"};vardump(zzslArr,'zzslArr');
//alert(zzslArr['1']['baidu']);
//alert(zzslArr.s1.baidu);
alert(zzslArr[1][baidu]);
我要获取的是第一个的baidu的值，但是就是获取不到啊，得到都是undefined……
这个是怎么回事……折磨了很久……

Answer 1

var zzslArr = zzflArr = {};
zzslArr[0] = {"baidu":9610000,"baidu_date":"2011-6-1","google":193000000,"yahoo":"0","soso":"87,000,000"};
zzflArr[1] = {"baidu_r":"45,600,000","google_r":"170","yahoo_r":"463,332","soso_r":"87,000,000"};//vardump(zzslArr,'zzslArr');
//alert(zzslArr['1']['baidu']);
//alert(zzslArr.s1.baidu);
alert(zzslArr[0]["baidu"]);

Answer 2

第一不要用 ==给两个变量赋值. 你这俩变量名字太像了,我以为是一个呢...
var zzslArr =  {};
var zzflArr = {};
第二[]内要加引号.
var zzslArr =  {};
var zzflArr = {};
zzslArr[0] = {"baidu":9610000,"baidu_date":"2011-6-1","google":193000000,"yahoo":"0","soso":"87,000,000"};
zzflArr[0] = {"baidu_r":"45,600,000","google_r":"170","yahoo_r":"463,332","soso_r":"87,000,000"};//vardump(zzslArr,'zzslArr');
//alert(zzslArr['1']['baidu']);
//alert(zzslArr.s1.baidu);
alert(zzslArr[0]["baidu"]);
alert(zzflArr[0]["baidu_r"]);

Answer 3

js不是php没有var_dump函数，
只有typeof

Answer 4

额。。
那个是我自定义的一个函数，js的（是没有问题的）：function vardump(obj,objname,deep){
  deep = deep||1;
  if(deep > 5) return "";
  deep++;
  /* 不是对象也不是数组 */
  if(typeof(obj) != 'object' && typeof(obj) != 'array'){
    document.writeln("<div>"+objname+"不是对象或者数组["+typeof(obj)+"]</div>");
    return '';
    }
  /* 开始打印 */
  document.writeln("<ul>");
  for(var i in obj){
    document.write("<li>");
    document.write(objname+'['+i+'] = '+obj[i]);
    if(typeof(obj[i]) == 'object' || typeof(obj[i]) == 'array'){
      document.write('<b style="font-size:13px;cursor:pointer;" mce_style="font-size:13px;cursor:pointer;" onclick="if(this.textContent==\'[展开]\'){this.textContent=\'[折叠]\';this.nextSibling.style.display=\'block\';}else{this.textContent=\'[展开]\';this.nextSibling.style.display=\'none\';}">[折叠]</b>');
      vardump(obj[i],objname+"["+i+"]",deep);
      }
    document.write("</li>");
    }
    document.writeln('</ul>');
  }

Answer 5

var zzslArr = zzflArr = {};  //zzslArr、zzflArr实际上引用了同一个变量
zzslArr[1] = {"baidu":9610000,"baidu_date":"2011-6-1","google":193000000,"yahoo":"0","soso":"87,000,000"};
zzflArr[1] = {"baidu_r":"45,600,000","google_r":"170","yahoo_r":"463,332","soso_r":"87,000,000"};  //这样就覆盖了上一行中定义的属性、值alert(zzslArr[1].baidu_r);

Answer 6

var zzslArr = zzflArr = {};
alert(zzslArr === zzflArr);
zzslArr = {};
zzflArr = {};
alert(zzslArr === zzflArr);

Answer 7

var zzslArr = zzflArr = {};
从你的代码看你肯定不会希望 zzslArr ， zzflArr 是同一个对象

Answer 8

var zzslArr = zzflArr=  {};
zzslArr[1] = {"baidu":9610000,"baidu_date":"2011-6-1","google":193000000,"yahoo":"0","soso":"87,000,000"};
zzflArr[1] = {"baidu_r":"45,600,000","google_r":"170","yahoo_r":"463,332","soso_r":"87,000,000"};
zzslArr 被zzslArr覆盖了，所以找不到baidu这个key
你试下alert(zzslArr[1].baidu_r);这样就知道了。不要这么赋值var zzslArr = zzflArr=  {};

Answer 9

我怎么知道JS里面是这样的啊，因为在PHP里面如果连续等号只是值相同而已的。