/// <summary>
/// 截取消息中的文字部分
/// </summary>
public string GetText()
{
var text = new StringBuilder();
MessageBody.Where(s => s.MessageType == SegmentType.Text)
.Select(s => s.Data as TextSegment)
.ToList()
.ForEach(t => text.Append(t?.Content ?? string.Empty));
return(text.ToString());
}
/// <summary>
/// 获取所有At的UID
/// Notice:at全体不会被转换
/// </summary>
/// <returns>
/// <para>At的uid列表</para>
/// <para><see cref="List{T}"/>(T=<see cref="long"/>)</para>
/// </returns>
public IEnumerable <long> GetAllAtList()
{
List <long> uidList = MessageBody.Where(s => s.MessageType == SegmentType.At)
.Select(s => long.TryParse((s.Data as AtSegment)?.Target ?? "0",
out long uid)
? uid
: -1)
.ToList();
//去除无法转换的值，如at全体
uidList.RemoveAll(uid => uid == -1);
return(uidList);
}
/// <summary>
/// 获取所有图片信息
/// </summary>
/// <returns>
/// <para>图片信息结构体列表</para>
/// <para><see cref="List{T}"/>(T=<see cref="ImageSegment"/>)</para>
/// </returns>
public IEnumerable <ImageSegment> GetAllImage()
{
return(MessageBody.Where(s => s.MessageType == SegmentType.Image)
.Select(s => s.Data as ImageSegment)
.ToList());
}