在Google表格中选择功能的底部文本

Question

我想要做的就是使它onOpen脚本在doPost中运行，以便在我运行函数时它将选择底部的文本。提交表单时，该代码用于表单，应该在电子表格中创建文本。然后选择提交时最后创建的文本（电子表格的底部），而无需重新加载。

var sheetName = 'Sheet1'
var scriptProp = PropertiesService.getScriptProperties()

function onOpen() {
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var mysheet = ss.getActiveSheet();

  var lastrow = mysheet.getLastRow();

  mysheet.setActiveCell(mysheet.getDataRange().offset(lastrow-1, 0, 1, 1));
};

function intialSetup () {
  var activeSpreadsheet = SpreadsheetApp.getActiveSpreadsheet()
  scriptProp.setProperty('key', activeSpreadsheet.getId())
}

function doPost (e) {
  var lock = LockService.getScriptLock()
  lock.tryLock(10000)
  .myFunction()
  try {
    var doc = SpreadsheetApp.openById(scriptProp.getProperty('key'))
    var sheet = doc.getSheetByName(sheetName)

    var headers = sheet.getRange(1, 1, 1, sheet.getLastColumn()).getValues()[0]
    var nextRow = sheet.getLastRow() + 1

    var newRow = headers.map(function(header) {
      return header === 'timestamp' ? new Date() : e.parameter[header]
    })
    sheet.getRange(nextRow, 1, 1, newRow.length).setValues([newRow])

    return ContentService
      .createTextOutput(JSON.stringify({ 'result': 'success', 'row': nextRow }))
      .setMimeType(ContentService.MimeType.JSON)
  }

  catch (e) {
    return ContentService
      .createTextOutput(JSON.stringify({ 'result': 'error', 'error': e }))
      .setMimeType(ContentService.MimeType.JSON)
  }

  finally {
    lock.releaseLock()
  }
}

onOpen需要与doPost一起执行

前端的javascript代码：

const scriptURL = 'GOOGLE KEY!!!'
        const form = document.forms['submit-to-google-sheet']

        form.addEventListener('submit', e => {
          e.preventDefault()
          fetch(scriptURL, { method: 'POST', body: new FormData(form)})
            .then(response => console.log('Success!', response))
            .catch(error => console.error('Error!', error.message))
            on(); 
            playAudio();
        })

        function on() {
  document.getElementById("overlay").style.display = "block";
}
var x = document.getElementById("myAudio"); 

function playAudio() { 
  x.play(); 
} 

function pauseAudio() { 
  x.pause(); 
}