我有一个Python脚本，做一些操作上的JPEG图像。我传递一些参数，这个脚本，并从我的HTML页面调用它。该脚本返回一个IMG SRC =newimage.jpg标签。

I have a Python script that is doing some manipulation on a JPEG image. I pass some parameters to this script and call it from my HTML page. The script returns an img src="newimage.jpg tag.

我知道如何等待剧本的答复，但我不知道如何告诉当图像完全加载（当它是，我想要显示它）。图像加载缓慢，因此用户是看到这个加载过程中我现在得到的是。相反，我希望有一个味精告诉用户，而图像加载等待，才把我想要显示的图像。

I know how to wait for the reply from the script but I don't know how to tell when the image is fully loaded (when it is, I want to display it). What I get now is the image loading slowly so the user is seeing this "loading" process. Instead, I want to have a msg telling the user to wait while the image is loading, only then I want to display the image.

推荐答案

您可以动态地创建一个新的形象，结合东西，它的加载事件，并设置源：

You can dynamically create a new image, bind something to its load event, and set the source:

$('<img>').bind('load', function() {
    $(this).appendTo('body');
}).attr('src', image_source);