JQuery中ajax請求

關於Jquery中的ajax請求 ，我並沒做乾的的說詞，而是給出我自己做的實實在在的例子，供大家參考。
<script type="text/javascript" src ="jquery-1[1].2.6.js"></script>
<script >
      function button1()
      {
      $("#demo").load("http://localhost/DedecmsV53/upload/");
      }
      function button2()
      {
      $.get("jquery.htm",function (uname){
      document .getElementById ("demo").innerHTML =uname;
      });
      }
      function button4()
      {
      $.post("jquery.htm",function (uname){
      document .getElementById ("demo").innerHTML =uname;
      });
      }
      function button3()
      {
      $.ajax({type: "GET",
        url: "WebForm1.aspx"
      });
      }
      function button5()
      {
     $.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?tags=cat&tagmode=any&format=json&jsoncallback=?",
    function(data){
     $.each(data.items, function(i,item){$("<img/>").attr("src", item.media.m).appendTo("#demo");
    if ( i == 3 ) return false;});});
    }
    function button6()
    {
    $.ajax({
   contentType:"application/json",
   type: "POST",
   url: "WebService.asmx/HelloWorld",
    data:"{'name':'張三'}",
   dataType: 'json',
   success: function(msq){
  alert (msq.d);
        }
});
    }
    $(function ()
    {
    $("div").css({color:"red"})//樣式
    });
     </script>