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json

2024-08-21 15:45:46   221人阅读

将json数据写入对应的table中。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <title></title>
    <script src="http://www.mamicode.com/jquery-2.0.0.js"></script>
    <script type="text/javascript">
    function json_value(){
    	var value_1 = ‘{"spectrum":[{"spec_freq":111,"spec_type":2, "spec_lo":132},    	{"spec_freq":151,"spec_type":2, "spec_lo":129}],"take":"12fdsafds"}‘;
    	var value_2 = eval("("+value_1+")");
    	//console.log(value_2.spectrum[1].spec_lo);
    	//alert((value_2.spectrum[1].spec_lo));
    	console.log(value_2.spectrum.length); //读取数组长度
    	return value_2.spectrum;

    }

    function test() {
    	var spec = ["spec_freq", "spec_type", "spec_lo"];
    	var spectrum_tol = json_value();
    	spectrum_tol[1][spec[0]] =  250;
    	for (index_tol in spectrum_tol)
    	{
    		for (index_spec in spec)
    		{
    			if (spec[index_spec] != "spec_type")
    			{
    				$(‘[name="‘+spec[index_spec]+‘"]‘).eq(index_tol).text(spectrum_tol[index_tol][spec[index_spec]]);
    			}    
    			else
    			{
    				$(‘[name="‘+spec[index_spec]+‘"]‘).eq(index_tol).val(spectrum_tol[index_tol][spec[index_spec]]);
    			}			
    		}
    	}
     } 
    </script>
</head>

<body onl oad="json_value();">
    <table border="1" width="90%" align="center">
    	<tr align="center">
    		<td name="spec_freq">1</td>
    		<td width="20%">
    			<select name="spec_type" style="width:100%" dir="ltr">
    				<option value="http://www.mamicode.com/1">1</option>
    				<option value="http://www.mamicode.com/2">2</option>
    			</select>
    		</td>
    		<td name="spec_lo">1</td>
    	</tr>
    	<tr align="center">
    		<td name="spec_freq">2</td>
    		<td>
    			<select name="spec_type" >
    				<option value="http://www.mamicode.com/1">1</option>
    				<option value="http://www.mamicode.com/2">2</option>
    			</select>
    		</td>
    		<td name="spec_lo">2</td>
    	</tr>    	
    </table>
    <table width="90%" align="center">
    	<tr>
	    	<td align="right">
	    		<input type="button" style="width:200px" name="test"  value="http://www.mamicode.com/test" onclick="test();">	
	    	</td>    		
    	</tr>
    </table>

</body>

</html>

　　

json


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