React Redux如何传递到操作负载目标值

// actions.js
export const updateTargetValue = (value) => ({
  type: 'UPDATE_TARGET_VALUE',
  payload: value,
});

// reducer.js
const initialState = {
  targetValue: '',
};

export const rootReducer = (state = initialState, action) => {
  switch (action.type) {
    case 'UPDATE_TARGET_VALUE':
      return {
        ...state,
        targetValue: action.payload,
      };
    default:
      return state;
  }
};

// store.js
import { createStore } from 'redux';
import { rootReducer } from './reducer';

const store = createStore(rootReducer);

export default store;

// MyComponent.js
import React from 'react';
import { connect } from 'react-redux';
import { updateTargetValue } from './actions';

class MyComponent extends React.Component {
  handleChange = (event) => {
    this.props.updateTargetValue(event.target.value);
  };

  render() {
    return (
      <div>
        <input
          type="text"
          value={this.props.targetValue}
          onChange={this.handleChange}
        />
      </div>
    );
  }
}

const mapStateToProps = (state) => ({
  targetValue: state.targetValue,
});

const mapDispatchToProps = {
  updateTargetValue,
};

export default connect(mapStateToProps, mapDispatchToProps)(MyComponent);