如何将此curl请求转换为jquery请求？

I'm trying to use an API but their examples are in curl, not javascript, which is what I'm most familiar with. Here is their example:

$ curl http://visearch.visenze.com/uploadsearch \
   -d im_url=http://example.com/example-0.jpg \
   -d box=0,0,20,20 \
   -u access_key:secret_key

This is my attempt at an equivalent jquery request, but it's not working.

$.get("http://visearch.visenze.com/uploadsearch/im_url=http://example.com/example-0.jpg/box=0,0,20,20/u access :secret_key", function(data){...}); 

If you use $.ajax() instead (which $.get() is shorthand for), you can use the username and password parameters (jQuery 1.7.2+) for the basic auth. You'll need to pass through a data object and specify POST if you need that request method.

$.ajax(
    url: 'http://visearch.visenze.com/uploadsearch',
    data: {
        im_url: 'http://example.com/example-0.jpg',
        box: '0,0,20,20',
    },
    username: 'access_key',
    password: 'secret_key',
    type: 'POST',
    success: function(data) {
        // ... your callback
    }
);

Since you've tagged PHP in this question, I'll show an example of how you might want to hide your access keys etc in a backend wrapper as the Visenze API FAQs suggest you might do:

1. Create a PHP file

<?php

$accessKey = 'access_key';
$secretKey = 'secret_key';

if (isset($_POST['im_url'], $_POST['box'])) {
    // Initialize the cURL request to ViSenze
    $ch = curl_init('http://visearch.visenze.com/uploadsearch');

    // We want to RETURN the result not output it
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    // Set up the basic authentication settings
    curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
    curl_setopt($ch, CURLOPT_USERPWD, "$accessKey:$secretKey");

    // Define the post fields
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, [
        'im_url' => $_POST['im_url'],
        'box'    => $_POST['box']
    ]);

    // Do the request
    $result = curl_exec();
    curl_close($ch);

    // Output the results
    echo $result;
    exit;
}

echo 'Nothing posted to this script.';
exit;

2. Call that file instead with jQuery

$.post(
    'http://visearch.visenze.com/uploadsearch',
    {
        im_url: 'http://example.com/example-0.jpg',
        box: '0,0,20,20',
    },
    function(data) {
        // ... your callback
    }
);

This way your API credentials are stored in your PHP code so not visible when you view the source of your page.

cURL requests with the -d option send the request as POST requests (unless you specify the G modifier for GET requests) so you will need to use that format. You will also need to set the header in a beforeSend method:

$.ajax(
  'http://visearch.visenze.com/uploadsearch',
  type: 'post',
  data: {
    im_url: 'http://example.com/example-0.jpg',
    box: '0,0,20,20'
  },
  beforeSend: function (xhr) {
    xhr.setRequestHeader("Authorization", "Basic ");
  }
);