We_Relese/App/Relese/Views/Play/__/_EnvInfo.cshtml

@using WeApp.Helpers
@{
    string id = "env-info";
}
@Html.Partial("__/_AreaBox", $"演练信息#{id}")
<div style="display: none" id="@id-pre">
</div>

@using (Html.BeginScripts())
{
    <script id="env-info-script">
        var $envInfoBody = $('#@id .box-body');
        $envInfoBody.html($('#@id-pre').html());

        var env_infos = [],timer_env;
        function LoadEveInfo(delay) {
            clearTimeout(timer_env);
            $.get({
                url: "/content/data/envInfo.json",
                success: (arr) => {
                    while (arr.length != 0) {
                        var index = Math.floor(Math.random() * arr.length);  // 这里使arr.length
                        env_infos.push(arr[index]);
                        arr.splice(index, 1);
                    }
                    RenderEnvInfo(delay);
                }
            });
        }
        function RenderEnvInfo(delayNum) {
            if (env_infos.length) {
                var env = env_infos.pop();
                var html = `
<div class="px-6 env-info">
    <span>${env.source?env.source+":":""}<span>${env.info}</span></span>
    <span>${new Date().format("hh:mm:ss")}</span>
</div>`;
                $envInfoBody.append(html);
                window.Scroll2Bottom($('#@id').find('.scroll-box'));
                var delay = delayNum ? 1 + Math.random() * 2 : 50 + Math.random() * 10;
                delayNum--;
                timer_env = setTimeout(() => { RenderEnvInfo(delayNum)}, 1000 * delay);
            } else {
                LoadEveInfo();
            }
        }
        $(function () {
            LoadEveInfo(10);
        });
    </script>
}