React Formik :如何使用自定义onChange和onBlur

import { Formik, Field } from 'formik';

<Formik
  initialValues={{ name: '', email: '' }}
  validate={values => {
    const errors = {};
    // 自定义验证规则
    if (!values.name) {
      errors.name = 'Required';
    }
    if (!values.email) {
      errors.email = 'Required';
    }
    return errors;
  }}
  onSubmit={(values, { setSubmitting }) => {
    setTimeout(() => {
      alert(JSON.stringify(values, null, 2));
      setSubmitting(false);
    }, 400);
  }}
>

<form onSubmit={handleSubmit}>
  <Field
    name="name"
    type="text"
    component="input"
    onChange={handleChange}
    onBlur={handleBlur}
  />
  <Field
    name="email"
    type="email"
    component="input"
    onChange={handleChange}
    onBlur={handleBlur}
  />
  <button type="submit">Submit</button>
</form>