/**
 * 获取参数
 * @param name
 * @returns {string|null}
 * @constructor
 */
function GetQueryString(name) {
    let reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    let r = window.location.search.substr(1).match(reg);
    if (r != null) {
        return decodeURIComponent(r[2]);
    };
    return null;
}

function openCover(obj) {
    var hcode = '<img src="' + obj.src + '" style="max-width:480px; max-height:320px;" />';
    // layer.photos({
    //     anim:5,
    // });
    layer.open({
        type: 0,
        title: '预览封面',
        content: hcode,
        anim: 1,
        offset: '20px',
        isOutAnim: true,
        maxmin: false,
        fixed: true,
        resize: false,
        closeBtn: 1,
        shade: 0.5,
        shadeClose: true,
        success: function (layero, index) {
        }
    });
}