PHP Textarea 大小写转换

import React, { useState } from 'react';

const App = () => {
 const [diagnosis, setDiagnosis] = useState('');

 const handleInputChange = (e) => {
 setDiagnosis(e.target.value.toUpperCase());
 };

 return (
 <div className="min-h-screen bg-gray-100 flex items-center justify-center p-4">
 <div className="bg-white shadow-lg rounded-lg p-6 w-full max-w-md">
 <h1 className="text-2xl font-bold text-gray-800 mb-4">Histology Report</h1>
 <form>
 <div className="mb-4">
 <label className="block text-gray-700 text-sm font-bold mb-2" htmlFor="diagnosis">
 Diagnosis
 </label>
 <textarea
 id="diagnosis"
 className="shadow appearance-none border rounded w-full py-2 px-3 text-gray-700 leading-tight focus:outline-none focus:shadow-outline"
 value={diagnosis}
 onChange={handleInputChange}
 placeholder="Enter diagnosis..."
 />
 </div>
 </form>
 </div>
 </div>
 );
};

export default App;