style.display = "inline或inline";和style.display = "";的区别

function a(){
    if($('#b').attr('checked')){    
        $('.c').css("display",""); //"display","inline"改为"display",""
        //$("#c").show();
        //"display",""和show()、hide()方法对原样式无冲突，"display","inline"有改变
    }else{
        $('.c').css("display","none"); 
        //$("#c").hide();
    }    
}