修改成这个后解决
<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="Content-Language" content="zh-CN" /> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>@ViewBag.Title - 我的 ASP.NET 应用程序</title> @Styles.Render("~/Content/css") @Scripts.Render("~/bundles/modernizr") </head> </html>