1. 返回ViewResult 

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public ActionResult Index()

{

ViewData["Message"] = "Welcome to ASP.NET MVC!";

return View();

}

public ActionResult Index()

{

ViewData["Message"] = "Welcome to ASP.NET MVC!";

return View();

} 

ActionResult是ViewResult基类 

2.返回字符串 

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public string GetData(string data)

{

string str = "Return String";

return str;

}

public string GetData(string data)

{

string str = "Return String";

return str;

} 

3.返回ContentResult 

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public ContentResult ContentString()

{

return Content("This is Content Result Sample");

}

public ContentResult ContentString()

{

return Content("This is Content Result Sample");

} 

4.返回PartialViewResult 

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public PartialViewResult PartiviewSample()

{

return PartialView();

}

public PartialViewResult PartiviewSample()

{

return PartialView();

} 

5.返回Javascript 

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public JavaScriptResult JSResult()

{

string js=@"<mce:script language='javascript'><!--

alert('This is javascript result sample);

// --></mce:script>";

return JavaScript(js);

}

public JavaScriptResult JSResult()

{

string js=@"<mce:script language='javascript'><!--

alert('This is javascript result sample);

// --></mce:script>";

return JavaScript(js);

} 

6. 返回JSON字符串 

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public JsonResult JsonString()

{

return Json(new{name="name", Sex="Sex"});

}

public JsonResult JsonString()

{

return Json(new{name="name", Sex="Sex"});

} 

7.返回FileResult 

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public FileResult FileSample()

{

return File(

"/Content/site.css",//文件路径

"text/css"//文件类型

);

}