2.事件处理.html 1005 B

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6. <title>Document</title>
  7. <script src="../js/babel.min.js"></script>
  8. <script src="../js/react.development.js"></script>
  9. <script src="../js/react-dom.development.js"></script>
  10. </head>
  11. <body>
  12. <div id="root"></div>
  13. <script type="text/babel">
  14. function handleClick() {
  15. console.log('点击事件')
  16. }
  17. function handleChange(event) {
  18. console.log(event.target.value)
  19. }
  20. function handleSubmit(event) {
  21. event.preventDefault()
  22. console.log('提交')
  23. }
  24. let element = (
  25. <div>
  26. <button onClick={handleClick}>点击按钮</button>
  27. <br/>
  28. <input type="text" onChange={handleChange}/>
  29. <form onSubmit={handleSubmit}>
  30. <button>提交</button>
  31. </form>
  32. </div>
  33. )
  34. ReactDOM.createRoot(document.getElementById('root')).render(element)
  35. </script>
  36. </body>
  37. </html>