When sending a request like this:

$.ajax({

    url: "url",

    type: "GET",

    date: "param=中文"

}).done();

"中文" will be urlencoded, the character-set is same as the page's.

But, when sending like this:

$.get("url", {param: "中文"}, function(){});

"中文" will be urlencoded, the character-set is "UTF-8", not using the page's character-set.

Why?