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javascript - cannot set property "onclick" of null
大家讲道理
大家讲道理 2017-05-19 10:40:17
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As shown
The error reported is: cannot set property "onclick" of null at window.onload

大家讲道理
大家讲道理

光阴似箭催人老，日月如移越少年。

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迷茫
迷茫2017-05-19 10:42:17 2 floor

The element cannot be obtained. Set id to input

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Ty80
Ty802017-05-19 10:42:17 1 floor

  1. Please post the code next time;

  2. You are using document.getElementById(), but you didn’t give the id in your HTML structure;

  3. It is recommended to use element.getElementsByTagName(tagName)this API, this is the tag name.

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