/// <summary>
/// 格式化习题
/// </summary>
/// <param name="selecter"></param>
/// <returns></returns>
public void formatQuestion(string color, string title, int index, int size)
{
this.RemoveAttr("p", "style", "class");
this.RemoveAttr("span", "style", "class");
var body = HtmlDoc.QuerySelector("body");
if (body == null)
{
body = HtmlDoc.CreateElement("body");
body.InnerHtml = HtmlDoc.DocumentNode.InnerHtml;
HtmlDoc.DocumentNode.RemoveAll();
HtmlDoc.DocumentNode.AppendChild(body);
}
var css = new StringBuilder();
css.AppendLine("body {" + $"color:{color};font-size:30px;font-weight:bold;line-height:1.5;font-family:'微软雅黑';" + "}");
css.AppendLine("p {margin:0 0 20px 0;}");
css.AppendLine("p:first-child {margin-bottom:50px;}");
var style = HtmlDoc.CreateElement("style");
style.InnerHtml = css.ToString();
var head = HtmlDoc.QuerySelector("head");
if (head == null)
{
head = HtmlDoc.CreateElement("head");
HtmlDoc.DocumentNode.InsertBefore(head, body);
}
head.AppendChild(style);
body.InnerHtml = $"<p><span style=\"color:#226cfb\">{index}</span>/{size}．{title}</p>" + body.InnerHtml;
}