日常请求vue3项目我们很多地方要用到loading效果：

import { ElLoading} from 'element-plus'
let loadingCount = 0;
let loading;
const startLoading = () => {
  loading = ElLoading.service({
    lock: true,
    text: 'Loading',
    background: 'rgba(0, 0, 0, 0.7)',
  });
};
 
const endLoading = () => {
  loading.close();
};
 
export const showLoading = () => {
  if (loadingCount === 0) {
    startLoading();
  }
  loadingCount += 1;
};
 
export const hideLoading = () => {
  if (loadingCount <= 0) {
    return;
  }
  loadingCount -= 1;
  if (loadingCount === 0) {
    endLoading();
  }
}
/* for example
  * import { showLoading, hideLoading } from '@/yousrc' //自封装loading加载效果引入
  * showLoading();//打开加载中
  * hideLoading();//关闭加载中

*/