Some problems with window.onload event in chrome_javascript skills

Suppose we have a page like the following:

Copy code The code is as follows:

In IE and When running under FF, the true size of the image can be displayed, even if I do not display the width and height of the img. But under chrome, it displays 0.
But if you change the new init() after window.onload to
window.onload=init
or
window.onload=function(){new init(){}}
You can read the size of the image after it is loaded.
Please keep the following information when reprinting
Author: Beiyu (tw:@rehawk)