DDOM如何实现组件通信?
Data from global state: {data}
{messages.map((message, index) => (
);
}
```
3. 通信实现
```javascript
// 父组件
function ChatComponent(props) {
const [messages, setMessages] = useState([]);
const handleSendMessage = (message) => {
setMessages([...messages, message]);
};
return (
{message}
))}
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