问通过传递参数来使用JQuery设置html下拉列表的值

EN

<tr>
            <td>
                <label for="ddlCountry">
                    Country</label>
            </td>
            <td>
                <select id="ddlCountry" name="ddlCountry">
                </select>
            </td>
        </tr>
        <tr>
            <td>
                <label for="ddlCurency">
                    Currency</label>
            </td>
            <td>
                <select id="ddlCurrency" name="ddlCurrency">
                </select>
            </td>
        </tr>

var $html1 = '';
                $html1 += '<option value="">---Select Currency---</option>';
                if ($currencyList != null || $currencyList != '') {
                    $.each($currencyList, function (index, item) {
                        $html1 += '<option value=' + item.Currency + '>' + item.Currency + '</option>';
                    });
                }
                $('#ddlCurrency').append($html1);

var $html = '';
                $html += '<option value="">---Select Country---</option>';
                if ($countryList != null || $countryList != '') {
                    var $i = 0;
                    $.each($countryList, function (index, item) {
                        $html += '<option value=' + $i + '>' + item.Country + '</option>';
                        $i++;
                    });
                }
                $('#ddlCountry').append($html);

$('select[id=ddlCountry] option:contains(' + argus[5] + ')').attr('selected', true);
        $("#ddlCurrency option[value=" + argus[6] + "]").attr('selected', 'selected');

$("#ddlCurrency option[value=" + 'USD' + "]").attr('selected', 'selected');