/// <summary>
/// 往页面中写入css样式
/// </summary>
/// <param name="htmlHelper">需要扩展对象</param>
/// <param name="cssFiles">文件路径</param>
/// <returns></returns>
public static MvcHtmlString AppendCssFile(this HtmlHelper htmlHelper, params string[] cssFiles)
{
string cssFile = "";
foreach (string file in cssFiles)
{
if (cssFile != "")
{
cssFile += ",";
}
cssFile += file;
}
string cssStr = CssHelper.ReadCssFile(cssFiles);
StringBuilder content = new StringBuilder();
string cssFormat = "<style>{0}</style>";
content.AppendFormat(cssFormat, cssStr);
return(new MvcHtmlString(content.ToString()));
}