如何将HTML表格导出或转换为CSV？

function exportTableToCSV() {
  var table = document.getElementById("tableId"); // 替换为你的表格ID
  var csvString = "";

  for (var i = 0; i < table.rows.length; i++) {
    var rowData = table.rows[i].cells;

    for (var j = 0; j < rowData.length; j++) {
      csvString += rowData[j].innerText + ",";
    }

    csvString = csvString.substring(0, csvString.length - 1);
    csvString += "\n";
  }

  var blob = new Blob([csvString], { type: "text/csv;charset=utf-8;" });
  var downloadLink = document.createElement("a");
  downloadLink.href = URL.createObjectURL(blob);
  downloadLink.download = "table.csv"; // 下载文件的名称

  document.body.appendChild(downloadLink);
  downloadLink.click();
  document.body.removeChild(downloadLink);
}