jQuery设置函数有什么问题吗？

Question

假设我想导入一个脚本(使用Ajax)，该脚本包含一些原始的html和一个java脚本：

<p>To comment, please first prove that you are human being</p>
<form method='post' action='../recapatcha_verify.php'>
<script type="text/javascript"
 src="http://www.google.com/recaptcha/api/challenge?k=your_public_key">
 </script>
<input type='submit'/> 
</form>

下面的函数有什么问题吗？

  function comments(file, id, fs, pn, ln)
   {
      $("div#commentWrapper").show(function(){
       $.ajax({
           url: "../commentfiles/" + file,
           pid: id,
           fs: fs,
           pn: pn,
           ln: ln,
           dataType: script,
           success: function(txt)
                 {
            $("div#commentWindow").html(txt);
                  }
       });
      });

      }

PID、fs、pn和ln应该是url中的参数。当我使用$.get方法时，这是可行的，但是它对$.ajax是否同样有效呢？

我将数据类型设置为“script”，以便能够识别javascript。但这是对的吗？我不知道我还应该做什么......

Answer 1

To answer one of your questions, no, $.ajax does not take parameters the same way as $.get. To send parameters, you must use data:

$.ajax({
    ...
    data: {param1: 1, param2: 2, param3: 3},
    ...
});

Secondly, right now you're setting dataType to the value of a variable named script. You must set it to the string script:

$.ajax({
    ...
    dataType: 'script',
    ...
});

Some other things:

1. You may want to explicitly specify it's a GET request using type: 'GET'.
2. If it's HTML that contains a script, script is the wrong data type. (script will try to evaluate the HTML as JavaScript, which won't work)
3. .html will indeed insert the script tag, but it won't execute it. To get it to execute, you must remove and then re-insert the script tag.