拷贝文本

export const copyText = (str = "") => {
  let textArea = document.createElement("textarea");
  //解决火狐复制会滚动
  textArea.style.cssText = "opacity:0;position:fixed";
  textArea.value = str;
  document.body.appendChild(textArea);
  textArea.select();
  if (document.execCommand('copy')){
    document.execCommand('copy');
    //message.info("复制成功");
  } else {
    //message.warning("该浏览器不支持点击复制到剪贴板");
  }
  document.body.removeChild(textArea);
};