var a ={'key1'{key12:value12,key13:value13},'key2'{key22:value22}} 怎么追加元素_Java Web开发

var a ={'key1':{key12:value12,key13:value13},'key2':{key22:value22}} 如何追加元素
var a ={'key1':{key12:value12,key13:value13},'key2':{key22:value22}} 如何追加元素

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prototype这个不可以么？
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<SCRIPT LANGUAGE="JavaScript">
  <!--
	var a ={'key1':{'key12':'value12','key13':'value13'},'key2':{'key22':'value22'}} 
	a.key3={'key31':'31','key32':'32'};
	alert(a.key3.key31);
  //-->
  </SCRIPT>

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建议看看json字符串
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换个马甲而已，本质还是一个 Object，加个属性即可。