$ .ajax和JQUERY中的返回值

Is there an example for the $.ajax() that returns values from a webservice or should I use $.ajaxSetup() ?

The jQuery ajax docs have a whole tab of examples.

Particularly, you can look at the success callback in the options tab to see the appropriate syntax for getting the data that's returned.

Gabriel Hurley has given the right answer, I just want to elaborate a bit. I like to use the ajax function, rather than get or post as I find it more readable and you can react to the different results of the ajax call.

 $.ajax({
   type: "GET",
   dataType: "html"
   url: "services/addUser",
   data: "{name:'Jo', email:'an@ddress.com'}",
   success: function(result){
     //It worked!
   },
   error: function(err) {
     //The ajax call didn't work
     alert("It didn't work: " + err);
   }
 });