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$ is not defined

Posted Dec 8, 2020
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1 min read

报错信息

1

ReferenceError: $ is not defined [详细了解]

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<script type="text/javascript">
    $(function () {
        alert("OK");
    });
</script>
<script type="text/javascript" src="js/jquery.min.js"></script>

修改办法，把JQuery代码放在引用JQuery文件引入的后面

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<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript">
    $(function () {
        alert("OK");
    });
</script>
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This post is licensed under CC BY 4.0 by the author.