创建多个按钮并将它们绑定到相应的标签

<button id="btn1">按钮1</button>
<button id="btn2">按钮2</button>
<button id="btn3">按钮3</button>

<div id="label1"></div>
<div id="label2"></div>
<div id="label3"></div>

// 获取按钮和标签的引用
var btn1 = document.getElementById("btn1");
var btn2 = document.getElementById("btn2");
var btn3 = document.getElementById("btn3");

var label1 = document.getElementById("label1");
var label2 = document.getElementById("label2");
var label3 = document.getElementById("label3");

// 绑定点击事件
btn1.addEventListener("click", function() {
  label1.innerText = "按钮1被点击";
});

btn2.addEventListener("click", function() {
  label2.innerText = "按钮2被点击";
});

btn3.addEventListener("click", function() {
  label3.innerText = "按钮3被点击";
});