检测按钮是否一直被按下

var button = document.getElementById("myButton");
var isButtonPressed = false;

button.addEventListener("mousedown", function() {
  isButtonPressed = true;
});

button.addEventListener("mouseup", function() {
  isButtonPressed = false;
});

// 检测按钮是否一直被按下
function checkButtonPressed() {
  if (isButtonPressed) {
    console.log("按钮一直被按下");
  } else {
    console.log("按钮未被按下");
  }
}

// 每隔一段时间检测按钮状态
setInterval(checkButtonPressed, 1000); // 每秒检测一次

<template>
  <div>
    <button @mousedown="startPress" @mouseup="stopPress">按钮</button>
    <p v-if="isButtonPressed">按钮一直被按下</p>
    <p v-else>按钮未被按下</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      isButtonPressed: false
    };
  },
  methods: {
    startPress() {
      this.isButtonPressed = true;
    },
    stopPress() {
      this.isButtonPressed = false;
    }
  }
};
</script>