Material-UI 中“下拉菜单”和“选择字段”有什么区别

JSx
import React, { useState } from 'react';
import { Select, MenuItem } from '@material-ui/core';
const DropdownMenu = () => {
  const [selectedOption, setSelectedOption] = useState('');
  const handleOptionChange = (event) => {
    setSelectedOption(event.target.value);
  };
  return (
    <Select value={selectedOption} onChange={handleOptionChange}>
      <MenuItem value="option1">Option 1</MenuItem>
      <MenuItem value="option2">Option 2</MenuItem>
      <MenuItem value="option3">Option 3</MenuItem>
    </Select>
  );
};
export default DropdownMenu;

JSx
import React, { useState } from 'react';
import { TextField, MenuItem } from '@material-ui/core';
const SelectField = () => {
  const [selectedOption, setSelectedOption] = useState('');
  const handleOptionChange = (event) => {
    setSelectedOption(event.target.value);
  };
  return (
    <TextField</p>      select
      value={selectedOption}
      onChange={handleOptionChange}
      label="Select Option"
    >
      <MenuItem value="option1">Option 1</MenuItem>
      <MenuItem value="option2">Option 2</MenuItem>
      <MenuItem value="option3">Option 3</MenuItem>
    </TextField>
  );
};
export default SelectField;