// 动态插入js
export function insertScript(url: string) {
  return new Promise((resolve, reject) => {
    let js = document.createElement('script');
    js.setAttribute('src', url);
    js.onload = function () {
      resolve(true);
    };
    js.onerror = function (e) {
      reject(e);
    };
    document.head.appendChild(js);
  });
}