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12月29号json操作(第56天的学习)

 
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<html>
<head>
<script script language="javascript" type="text/javascript">
<!--定义一个变量 在里面定义一个json表格-->
function getValue()
{
var people = {
"programmers": [ { "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" },
     { "firstName": "Jason", "lastName":"Hunter", "email": "bbbb" },
{ "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" }
   ],
"authors": [
{ "firstName": "Isaac", "lastName": "Asimov", "genre": "science fiction" },
{ "firstName": "Tad", "lastName": "Williams", "genre": "fantasy" },
{ "firstName": "Frank", "lastName": "Peretti", "genre": "christian fiction" }
    ],
    "musicians": [
                     { "firstName": "Eric", "lastName": "Clapton", "instrument": "guitar" },
                     { "firstName": "Sergei", "lastName": "Rachmaninoff", "instrument": "piano" }
                 ] }
//<!--警告框查询输出变量people里面的 authors数组里面第2行的genre值对的值 musicians数组里面第2行的lastName值对的值 programmers数组第3行 firstName值对的值-->
//alert(people.authors[1].genre);
//alert(people.musicians[1].lastName);
//alert(people.programmers[2].firstName);
//<!--对people变量里面的 musicians数组的第2行的 lastName值对的 Rachmaninoff值 修改成 Rachmaninov 值-->
//people.musicians[1].lastName = "Rachmaninov";
//<!--警告框输出people变量里面 musicians数组第2行修改完以后的值-->
//alert(people.musicians[1].lastName);
//<!--对people变量里面authors数组里面第1行 firstName 值对的值 删除掉-->
//people.authors[0].firstName = "";
//<!--警告框输出people变量里面authors数组第1行里面firstName值对的值-->
//alert(people.authors[0].firstName);
//<!--people里面musicians数组第3行添加一组值对-->
//people.musicians[2] = { "firstName": "nihao", "lastName": "user", "instrument": "haokan" }
//<!--警告框输出people里面musicians数组的第3行firstName值对的值-->
//alert(people.musicians[2].firstName);
</script>

</head>
<body>

</body>
</html>
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| 12月28号json(第55天的学习)
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