<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>props的函数组件实现</title>
<script src="https://unpkg.com/react@18/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script>
<!-- Don't use this in production: -->
<script src="https://unpkg.com/@babel/standalone/babel.min.js"></script>
<!-- prop类型限制导入 -->
<script src="https://unpkg.com/prop-types@15.6/prop-types.js"></script>
</head>
<body>
<div id="test1"></div>
<div id="test2"></div>
<div id="test3"></div>
</body>
<script type="text/babel">
function Person(props) {
const { name, sex, age } = props
return (
<ul>
<li>姓名：{name}</li>
<li>性别：{sex}</li>
<li>年龄：{age}</li>
</ul>
)
}
//props类型限制
Person.propTypes = {
name: PropTypes.string.isRequired,//是字符串类型且不能为空
sex: PropTypes.string,//是字符串类型
age: PropTypes.number,//是数值类型
speak: PropTypes.func//是函数类型
}
//props默认值
Person.defaultProps = {
age: 0,
sex: '未知'
}
//基本使用
ReactDOM.render(<Person name="张三" age={15} sex="男" />, document.getElementById('test1'))
ReactDOM.render(<Person name="李四" />, document.getElementById('test2'))
//批量传递props
const p = { name: "王五", age: 17, sex: "女", speak: function a() { } }
ReactDOM.render(<Person {...p} />, document.getElementById('test3'))
</script>
</html>
