vue雪花飘落完整代码

这是一个使用 Vue.js 实现的雪花飘落效果的完整代码示例：

<template>
  <div class="snowfall">
    <div v-for="(flake, index) in flakes" :key="index" :style="{ top: flake.y + 'px', left: flake.x + 'px' }" class="flake">
      {{ flake.text }}
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      flakes: [],
      maxFlakes: 50,
      minFlakeSize: 10,
      maxFlakeSize: 20,
      minSpeed: 1,
      maxSpeed: 5,
    };
  },
  mounted() {
    this.createFlakes();
    this.moveFlakes();
  },
  methods: {
    createFlakes() {
      for (let i = 0; i < this.maxFlakes; i++) {
        let flakeSize = this.getRandom(this.minFlakeSize, this.maxFlakeSize);
        let flakeSpeed = this.getRandom(this.minSpeed, this.maxSpeed);
        let flake = {
          x: this.getRandom(0, 100),
          y: this.getRandom(-600, 0),
          size: flakeSize,
          text: '❄️',
          speed: flakeSpeed,
        };
        this.flakes.push(flake);
      }
    },
    moveFlakes() {
      setInterval(() => {
        for (let i = 0; i < this.flakes.length; i++) {
          let flake = this.flakes[i];
          flake.y += flake.speed;
          if (flake.y > 600) {
            this.flakes.splice(i, 1);
            i--;
          }
        }
      }, 50);
    },
    getRandom(min, max) {
      return Math.floor(Math.random() * (max - min + 1)) + min;
    },
  },
};
</script>

<style>
.snowfall {
  position: relative;
  width: 100%;
  height: 600px;
  background: #000;
}

.flake {
  position: absolute;
  color: #fff;
  font-size: 20px;
}
</style>

这段代码使用了 Vue 的指令 `v-for` 和 `v-bind` 来渲染每一片雪花，使用了 `setInterval` 函数来不断更新雪花的位置，并在雪花超出视窗时将它从数组中移除。

注意：