51 lines
1.3 KiB
HTML
51 lines
1.3 KiB
HTML
<!--
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* @Author: chenxuan
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* @Date: 2022-01-01 14:00:24
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* @LastEditTime: 2022-01-01 22:27:36
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* @LastEditors: chenxuan
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-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>props限制和默认值</title>
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</head>
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<body>
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<div id="app"></div>
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<script src="../package/old/react.development.js"></script>
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<script src="../package/old/react-dom.development.js"></script>
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<script src="../package/old/babel.min.js"></script>
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<script src="../package/old/prop-types.js"></script>
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<script type="text/babel">
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class Person extends React.Component{
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render(){
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const {name,sex,age}=this.props
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return(
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<ul>
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<li>姓名：{name+1}</li>
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<li>性别：{sex}</li>
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<li>年龄：{age}</li>
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</ul>
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)
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}
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}
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//
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Person.propTypes = {
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name:PropTypes.string.isRequired, //限制name必传，且为字符串
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sex:PropTypes.string,//限制sex为字符串
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age:PropTypes.number,//限制age为数值
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speak:PropTypes.func
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}
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Person.defaultProps={
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name:"xxxx",
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sex:"xxxx",
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age:999
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}
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function speak(){
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console.log('我说话了');
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}
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ReactDOM.render(<Person name="陈轩" age={18} sex="男" speak={speak}/>,document.getElementById('app'))
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</script>
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</body>
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</html> |