小编Yes*_*dar的帖子

document.getElementById("submit").onclick = function () {
  document.getElementById("table").style.display = "block";

  var table = document.getElementById("table");
  var row = table.insertRow(-1);
  var date = row.insertCell(0);
  var desc = row.insertCell(1);
  var amt = row.insertCell(2);
  date.innerHTML = document.getElementById("date").value;
  desc.innerHTML = document.getElementById("desc").value;
  amt.innerHTML = document.getElementById("amount").value;

  return false;
}

table {
  display: none;
}

<h1>Expense Tracker</h1>

<form action="">
  <label id="date">Date: </label>
  <input type="date" id="date">
  <br>

  <label id="desc">Description: </label>
  <input type="text" id="desc">
  <br>

  <label id="amount">Amount: </label>
  <input type="text" id="amount">
  <br>

  <input type="button" id="submit" value="Submit">
  <br>
</form>

<table id="table">
  <tr>
    <th>Date</th> …