测试图片

测试代码

<style>
/* 核心样式 */
.github-badge {
display: inline-block;
border-radius: 4px;
text-shadow: none;
font-size: 13.1px;
color: #fff;
line-height: 15px;
margin-bottom: 6px;
font-family: "Open Sans", sans-serif;
}
.github-badge .badge-subject {
display: inline-block;
background-color: #4d4d4d;
padding: 4px 4px 4px 6px;
border-top-left-radius: 4px;
border-bottom-left-radius: 4px;
font-family: "Open Sans", sans-serif;
}
.github-badge .badge-value {
display: inline-block;
padding: 4px 6px 4px 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
font-family: "Open Sans", sans-serif;
}
.github-badge-big {
display: inline-block;
border-radius: 6px;
text-shadow: none;
font-size: 14.1px;
color: #fff;
line-height: 18px;
margin-bottom: 7px;
}
.github-badge-big .badge-subject {
display: inline-block;
background-color: #4d4d4d;
padding: 4px 4px 4px 6px;
border-top-left-radius: 4px;
border-bottom-left-radius: 4px;
}
.github-badge-big .badge-value {
display: inline-block;
padding: 4px 6px 4px 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
}
.bg-orange {
background-color: #ec8a64 !important;
}
.bg-red {
background-color: #cb7574 !important;
}
.bg-apricots {
background-color: #f7c280 !important;
}
.bg-casein {
background-color: #dfe291 !important;
}
.bg-shallots {
background-color: #97c3c6 !important;
}
.bg-ogling {
background-color: #95c7e0 !important;
}
.bg-haze {
background-color: #9aaec7 !important;
}
.bg-mountain-terrier {
background-color: #99a5cd !important;
}
</style>

<div class="github-badge-big">
    <span class="badge-subject"><i class="fa fa-wordpress"></i> Powered</span>
    <span class="badge-value bg-green">
        <!-- wordpress链接 -->
        <a href="https://cn.wordpress.org/" target="_blank" one-link-mark="yes">
            WordPress</a></span>
</div>
 
<div class="github-badge-big">
<span class="badge-subject"><i class="fa fa-id-card"></i> 备案号 </span
><span class="badge-value bg-orange">
<a href="https://beian.miit.gov.cn/" target="_blank" one-link-mark="yes"
>蜀ICP备2023023684号</a>
</div>

<!-- 运行时间 -->
<div class="github-badge-big">
    <span class="badge-subject"><i class="fa fa-clock-o"></i> Running Time</span><span
        class="badge-value bg-apricots"><span id="blog_running_days" class="odometer odometer-auto-theme"></span>
        days
        <span id="blog_running_hours" class="odometer odometer-auto-theme"></span> H
        <span id="blog_running_mins" class="odometer odometer-auto-theme"></span> M
        <span id="blog_running_secs" class="odometer odometer-auto-theme"></span>S
    </span>

<script no-pjax="">
    var blog_running_days = document.getElementById("blog_running_days");
    var blog_running_hours = document.getElementById("blog_running_hours");
    var blog_running_mins = document.getElementById("blog_running_mins");
    var blog_running_secs = document.getElementById("blog_running_secs");
    function refresh_blog_running_time() {
    var time = new Date() - new Date(2024, 8, 3, 0, 0, 0); /*此处日期的月份改为自己真正月份的前一个月*/
    var d = parseInt(time / 24 / 60 / 60 / 1000);
    var h = parseInt((time % (24 * 60 * 60 * 1000)) / 60 / 60 / 1000);
    var m = parseInt((time % (60 * 60 * 1000)) / 60 / 1000);
    var s = parseInt((time % (60 * 1000)) / 1000);
    blog_running_days.innerHTML = d;
    blog_running_hours.innerHTML = h;
    blog_running_mins.innerHTML = m;
    blog_running_secs.innerHTML = s;
    }
    refresh_blog_running_time();
    if (typeof bottomTimeIntervalHasSet == "undefined") {
    var bottomTimeIntervalHasSet = true;
    setInterval(function () {
    refresh_blog_running_time();
    }, 500);
    }
</script>

测试公式$\nabla^2f$

$$\nabla^2f=\frac{\partial^2f}{\partial x_1^2}+\frac{\partial^2f}{\partial x_2^2}+\ldots+\frac{\partial^2f}{\partial x_n^2}$$