显示加载条的条件错误

// 示例代码
if (isLoading) {
  showLoadingBar();
} else {
  hideLoadingBar();
}

// 示例代码
async function fetchData() {
  showLoadingBar();
  try {
    const response = await fetch('https://api.example.com/data');
    const data = await response.json();
    // 处理数据
  } catch (error) {
    console.error('Error fetching data:', error);
  } finally {
    hideLoadingBar();
  }
}

// 示例代码（使用Redux）
const initialState = {
  isLoading: false,
  data: null,
};

function reducer(state = initialState, action) {
  switch (action.type) {
    case 'FETCH_START':
      return { ...state, isLoading: true };
    case 'FETCH_SUCCESS':
      return { ...state, isLoading: false, data: action.payload };
    case 'FETCH_FAILURE':
      return { ...state, isLoading: false };
    default:
      return state;
  }
}