asp.net mvc @Html. Raw effect __.net

For example, there is a string like this <font color= ' red ' > Scarlet Letter </font>

If you use @html.raw (' <font color= ' red ' > Red ' </font> '), you will see a red "red word", which will display the Html string directly (<font color= ' red ' > Red text </font>)

The problem I encountered was:

In the background I defined a variable string a= "<div><input type=" text "value=" Hello "/></div>";

And then write in JS.

var strhtml= ' @a ';

$ ("#ruleDetaile"). Append (strhtml);

The results show that the processing is: <div><input type= "text" value= "Hello"/></div>. And I think the good effect is: a text box says hello

Baffled and then asked my boss he changed to: Var strhtml= ' @Html. Raw (a) '; That's it, okay?