ant-design/components/input/demo/presuffix.tsx

import React from 'react';
import { InfoCircleOutlined, UserOutlined } from '@ant-design/icons';
import { Input, Tooltip } from 'antd';

const App: React.FC = () => (
  <>
    <Input
      placeholder="Enter your username"
      prefix={<UserOutlined className="site-form-item-icon" />}
      suffix={
        <Tooltip title="Extra information">
          <InfoCircleOutlined style={{ color: 'rgba(0,0,0,.45)' }} />
        </Tooltip>
      }
    />
    <br />
    <br />
    <Input prefix="￥" suffix="RMB" />
    <br />
    <br />
    <Input prefix="￥" suffix="RMB" disabled />
  </>
);

export default App;