jQuery -使用条带元素和本地存储来保存/更新信用卡

$(document).ready(function() {
  // 选择信用卡输入框和保存按钮
  var $creditCardInput = $('#creditCardInput');
  var $saveButton = $('#saveButton');

  // 绑定保存按钮的点击事件
  $saveButton.click(function() {
    // 获取信用卡号码
    var creditCardNumber = $creditCardInput.val();

    // 使用本地存储保存信用卡号码
    localStorage.setItem('creditCardNumber', creditCardNumber);
  });
});

$(document).ready(function() {
  // 选择信用卡输入框
  var $creditCardInput = $('#creditCardInput');

  // 检查本地存储中是否已保存信用卡号码
  var savedCreditCardNumber = localStorage.getItem('creditCardNumber');
  if (savedCreditCardNumber) {
    // 填充信用卡输入框
    $creditCardInput.val(savedCreditCardNumber);
  }
});