从具有相同类名的按钮获取不同的值

<button class="my-button" value="value1">Button 1</button>
<button class="my-button" value="value2">Button 2</button>
<button class="my-button" value="value3">Button 3</button>

var buttons = document.querySelectorAll('.my-button');

buttons.forEach(function(button) {
  button.addEventListener('click', function(event) {
    var value = event.target.value;
    console.log(value); // 输出按钮的值
  });
});