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input 焦点问题?(点击其他按钮,input一直处于聚焦状态)

需要实现一个类似wechat的表情输入,但是input无法在点击删除按钮时,处于聚焦状态?
如何现实wechat那样点击表情和删除按钮是,光标还在input上面...
大神求解!
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只需要在点击表情和删除按钮是,将input设置focus就行了


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