function histroylinepic() {
    var height = $('.slider_pic_bg').height();
    var width = $('#slider_pic').width();
    console.log("histroylinepic");
    if (height == 0) {
        height = 126.14;
    }

    console.log(height);
    $('.prevbtnpic').height(height);
    $('.nextbtnpic').height(height);
    $('.historylineweb').height(height);
    $('.RD_01').width(width / 6);
}
function histroyline() {
    var slider_picw = parseInt($('#slider_pic').width());
    var RD_01w = $('.RD_01').width();
    var oPic = $('#slider_pic').find('ul');
    var oImg = oPic.find('li');
    var oLen = oImg.length / 6;

    var oLi = oImg.width();
    var prev = $("#prev");
    var next = $("#next");

    oPic.width(RD_01w * $('#slider_pic').find('ul').find('li').length); //计算总长度
    var iNow = 0;
    var iTimer = null;
    prev.click(function () {
        if (iNow > 0) {
            iNow--;
        }
        ClickScroll();
    })
    next.click(function () {
        if (iNow < oLen - 1) {
            iNow++;
            ClickScroll();
        }
    });
    function ClickScroll() {
        iNow == 0 ? prev.addClass('no_click') : prev.removeClass('no_click');
        iNow == oLen ? next.addClass("no_click") : next.removeClass("no_click");

        iNow == 0 ? prev.addClass('xt_click') : prev.removeClass('xt_click');
        iNow == oLen ? next.addClass("xt_click") : next.removeClass("xt_click");
        if (iNow == 0) {
            oPic.animate({ left: iNow * slider_picw })
        } else {
            oPic.animate({ left: -iNow * slider_picw })
        }
    }
}