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受控组件与非受控组件 #8

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ZWkang opened this issue May 7, 2018 · 0 comments
Open

受控组件与非受控组件 #8

ZWkang opened this issue May 7, 2018 · 0 comments

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@ZWkang
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ZWkang commented May 7, 2018

受控组件（Controlled Component）
非受控组件（Uncontrolled Component）

受控组件（Controlled Component）

什么叫受控组件呢？
web开发有一点常用的就是表单，
在表单提交拿值时，
我们将表单元素值存储在state内，并且经过处理函数操作setState改变表单值。
这样的形式就是受控组件了。
（当然，当你使用props的时候，值存在props中，改变元素值改变props这也是一种受控）
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@ZWkang