complex args doc

ReadMe.md

@@ -189,6 +189,33 @@ also use with `help`
 -msg: String
 ```
 
+Complex Argument
+---
+If the argument is not primitive, you can pass JSON string.
+
+```csharp
+public class ComplexArgTest : BatchBase
+{
+    public void Foo(int[] array, Person person)
+    {
+        Console.WriteLine(string.Join(", ", array));
+        Console.WriteLine(person.Age + ":" + person.Name);
+    }
+}
+
+public class Person
+{
+    public int Age { get; set; }
+    public string Name { get; set; }
+}
+```
+
+You can call like here.
+
+```
+> SampleApp.exe -array [10,20,30] -person {"Age":10,"Name":"foo"}
+```
+
 Daemon
 ---
 

sandbox/SingleContainedApp/Program.cs

@@ -112,17 +112,34 @@ public void Help()
         }
     }
 
+    public class ComplexArgTest : BatchBase
+    {
+        public void Foo(int[] array, Person person)
+        {
+            Console.WriteLine(string.Join(", ", array));
+            Console.WriteLine(person.Age + ":" + person.Name);
+        }
+    }
+
+    public class Person
+    {
+        public int Age { get; set; }
+        public string Name { get; set; }
+    }
+
     class Program
     {
         static async Task Main(string[] args)
         {
+            args =  @"-array [10,20,30] -person {""Age"":10,""Name"":""foo""}".Split(' ');
+
             await BatchHost.CreateDefaultBuilder()
                 .ConfigureServices((hostContext, services) =>
                 {
                     // mapping config json to IOption<MyConfig>
                     services.Configure<MyConfig>(hostContext.Configuration);
                 })
-                .RunBatchEngineAsync<MyFirstBatch>(args);
+                .RunBatchEngineAsync<ComplexArgTest>(args);
         }
     }
 }