select onchange event delivery check box value

    <select name="type" οnchange="show_sub(this.options[this.options.selectedIndex].value)">    
        <option value="0">请选择主类别</option>    
        <option value="1">1</option>    
        <option value="2">2</option>    
     </select>  

 

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Origin www.cnblogs.com/DongJiaxin/p/11362881.html