【h5】点击复制到粘贴板

• 兼容性：安卓：ios

/**
 * @desc 复制票号
 * @param {}
 * @return {}
 */
function copyTicketCodes() {
  if (!selectTickets.length) {
    Toast(t`请选择车票`);
    return;
  }
  const text = selectTickets.join('、');
  let inputDom = document.createElement('input');
  inputDom.value = text;
  inputDom.type = 'text';
  document.body.appendChild(inputDom);
  selectText(inputDom, 0, text.length);
  if (document.execCommand('copy')) {
    document.execCommand('copy')// 执行浏览器复制命令
    Toast(t`已复制到粘贴板`);
  } else {
    Toast(t`不兼容`);
  }
  inputDom.className = 'oInput';
  inputDom.style.display = 'none';
}

function selectText(textbox, startIndex, stopIndex) {
  if (textbox.createTextRange) {//ie
    var range = textbox.createTextRange();
    range.collapse(true);
    range.moveStart('character', startIndex);//起始光标
    range.moveEnd('character', stopIndex - startIndex);//结束光标
    range.select();//不兼容苹果
  } else {//firefox/chrome
    textbox.setSelectionRange(startIndex, stopIndex);
    textbox.focus();
  }
}