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composer 版本下载问题：这个^ 是什么意思？

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Release： 2016-06-06 20:07:40
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composer 版本下载问题：这个^ 是什么意思？

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composer 版本下载问题：这个^ 是什么意思？

参考 https://getcomposer.org/doc/articles/versions.md#caret

跟正则表达式的^一个意思

~2.8 相当于 >=2.8,

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