src/page/Home/User/index.tsx

@@ -415,6 +415,7 @@ const User: React.FC = () => {
               <Input
                 placeholder="请输入届"
                 value={addUserFrom.year}
+                maxLength={4}
                 onChange={(e) => {
                   const regex = /^[0-9]*$/;
                   if (regex.test(e.target.value)) {