加载指示器出现，但在react-redux中不移动

// 定义Redux状态管理
const initialState = {
  isLoading: false,
};

const reducer = (state = initialState, action) => {
  switch (action.type) {
    case 'START_LOADING':
      return {
        ...state,
        isLoading: true,
      };
    case 'STOP_LOADING':
      return {
        ...state,
        isLoading: false,
      };
    default:
      return state;
  }
};

// React组件
import React from 'react';
import { connect } from 'react-redux';

class MyComponent extends React.Component {
  render() {
    const { isLoading } = this.props;

    return (
      <div>
        {isLoading && <div>加载指示器</div>}
        {/* 其他组件内容 */}
      </div>
    );
  }
}

// 从Redux状态树中获取isLoading状态
const mapStateToProps = (state) => ({
  isLoading: state.isLoading,
});

// 使用connect函数连接Redux状态和React组件
export default connect(mapStateToProps)(MyComponent);