添加项目文件。

TightWiki.Library/ApplicationDbContext.cs

@@ -0,0 +1,19 @@
+using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore;
+
+namespace TightWiki.Library
+{
+    public class ApplicationDbContext : IdentityDbContext<IdentityUser>
+    {
+        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
+            : base(options)
+        {
+        }
+
+        protected override void OnModelCreating(ModelBuilder builder)
+        {
+            base.OnModelCreating(builder);
+        }
+    }
+}