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getElementById cannot get the object. . Can't find the reason_html/css_WEB-ITnose

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Release： 2016-06-24 12:18:12

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This post was last edited by itakeblue on 2013-01-10 00:29:15

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Icon</title></head><body><script type="text/javascript"><!--	document.getElementById('div_test').style.display='none';//--></script><div id="div_test">test</div></body></html>

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Such a simple code is a bit strange

The browser prompts a script error 'Error: Cannot get property "style" of undefined or null reference'

Reply to discussion (solution)

Sequential execution, div has not been created yet The code in the srcipt has been executed, so. .

It is executed sequentially. The code in the script is executed before the div is created, so. .

test

Thank you everyone, I made a stupid mistake :)

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getElementById 不能获得对象。。找不出原因

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