function clickAiSendDescription() { $('#id-listing-settings').on('click', '.sell-description-click-for-ai', function (e) { let url = $(this).data('ai-url'); let head_box_div = $('#id-listing-settings').find('#textarea-edit'); let domain_id = $(this).data('domain-id'); let data = {}; data.send_ai = 'send_ai'; data.domain_id = domain_id; data.question_id = 1; data.question_style_id = -1; let ai_send_div = $(this).parent().find('.ai-sends-icon'); let loading_gif_blue_icon = $("input[name='ai-loading-gif-blue-icon']").val(); ai_send_div.html('<img src="' + loading_gif_blue_icon + '" class = "loading-icon-img" border="0" >') $(this).css("pointer-events", 'none'); $.ajax({ url: url, type: 'POST', data: data }).done(function (responseData) { let json = JSON.parse(responseData); if (json.code == '0') { let text = $(json.message).text(); printTextVerbatim(head_box_div.children(), text); } }) e.stopPropagation(); }) } function printTextVerbatim(text_div, aiText) { text_div.html(''); let progress = 0; let timer = function () { let current = aiText.substr(progress, 1); if (current == '<') { progress = aiText.indexOf('>', progress) + 1 } else { progress += 6 } text_div.html(aiText.substring(0, progress)); if (progress >= aiText.length - 1) { clearTimeout(timer); } else { setTimeout(timer, 60); } }; setTimeout(timer, 70); }. 这个代码怎样可以使文本域随着文本向下滚动

可以修改printTextVerbatim函数，在text_div.html(aiText.substring(0, progress))后添加scrollTo函数，将滚动条滚动到文本最底部。具体代码如下：

function printTextVerbatim(text_div, aiText) {
    text_div.html('');
    let progress = 0;
    let timer = function () {
        let current = aiText.substr(progress, 1);
        if (current == '<') {
            progress = aiText.indexOf('>', progress) + 1
        } else {
            progress += 6
        }
        text_div.html(aiText.substring(0, progress));
        text_div.scrollTop(text_div[0].scrollHeight); // 添加滚动条滚动到文本最底部的代码
        if (progress >= aiText.length - 1) {
            clearTimeout(timer);
        } else {
            setTimeout(timer, 60);
        }
    };
    setTimeout(timer, 70);
}