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您的雪花效果代码非常完整,但结尾处似乎被截断了。以下是完整的动画循环部分补全建议:

```javascript
// 动画循环
function animate() {
    for (let i = 0; i < snowflakes.length; i++) {
        const snowflake = snowflakes[i];

        // 更新位置
        snowflake.y += snowflake.fallSpeed;
        snowflake.swayProgress += snowflake.swaySpeed * 0.01;

        // 左右摆动效果
        snowflake.x += Math.sin(snowflake.swayProgress) * snowflake.swayRange * 0.01;

        // 边界检测(补充完整)
        if (snowflake.y > window.innerHeight) {
            // 重置到顶部随机位置
            snowflake.y = -20;
            snowflake.x = Math.random() * window.innerWidth;
        }

        // 应用新位置
        snowflake.element.style.transform = `translate(${snowflake.x}px, ${snowflake.y}px)`;
    }

    requestAnimationFrame(animate);
}

// 启动动画
animate();
```

需要改进的几个关键点:

1. **性能优化**:
```javascript
// 使用transform代替直接修改位置(更高效的渲染)
snowflake.element.style.transform = `translate(${snowflake.x}px, ${snowflake.y}px)`;

// 添加will-change属性提升性能
snowflake.style.willChange = 'transform, opacity';
```

2. **响应式处理**:
```javascript
// 添加窗口resize监听
window.addEventListener('resize', () => {
    snowflakes.forEach(snow => {
        if (snow.x > window.innerWidth) {
            snow.x = window.innerWidth - 10;
        }
    });
});
```

3. **增强视觉效果**:
```javascript
// 在创建雪花时添加随机颜色
const colors = ['#E4F1FE', '#8DC6FF', '#FFFFFF', '#DDF3FF'];
snowflake.style.color = colors[Math.floor(Math.random() * colors.length)];

// 添加旋转动画
const rotation = Math.random() * 360;
snowflake.element.style.transform = `rotate(${rotation}deg)`;
```

4. **改进控制功能**:
```javascript
// 暂停功能
let isPaused = false;
document.getElementById('pauseSnow').addEventListener('click', () => {
    isPaused = !isPaused;
    if (!isPaused) animate();
});

// 在animate函数开头添加
if (isPaused) return;
```

完整的功能增强建议:

1. **添加碰撞检测**(可选):
```javascript
function checkCollisions() {
    for (let i = 0; i < snowflakes.length; i++) {
        for (let j = i + 1; j < snowflakes.length; j++) {
            const dx = snowflak by Hailuo AI Video Generator
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您的雪花效果代码非常完整,但结尾处似乎被截断了。以下是完整的动画循环部分补全建议: ```javascript // 动画循环 function animate() { for (let i = 0; i < snowflakes.length; i++) { const snowflake = snowflakes[i]; // 更新位置 snowflake.y += snowflake.fallSpeed; snowflake.swayProgress += snowflake.swaySpeed * 0.01; // 左右摆动效果 snowflake.x += Math.sin(snowflake.swayProgress) * snowflake.swayRange * 0.01; // 边界检测(补充完整) if (snowflake.y > window.innerHeight) { // 重置到顶部随机位置 snowflake.y = -20; snowflake.x = Math.random() * window.innerWidth; } // 应用新位置 snowflake.element.style.transform = `translate(${snowflake.x}px, ${snowflake.y}px)`; } requestAnimationFrame(animate); } // 启动动画 animate(); ``` 需要改进的几个关键点: 1. **性能优化**: ```javascript // 使用transform代替直接修改位置(更高效的渲染) snowflake.element.style.transform = `translate(${snowflake.x}px, ${snowflake.y}px)`; // 添加will-change属性提升性能 snowflake.style.willChange = 'transform, opacity'; ``` 2. **响应式处理**: ```javascript // 添加窗口resize监听 window.addEventListener('resize', () => { snowflakes.forEach(snow => { if (snow.x > window.innerWidth) { snow.x = window.innerWidth - 10; } }); }); ``` 3. **增强视觉效果**: ```javascript // 在创建雪花时添加随机颜色 const colors = ['#E4F1FE', '#8DC6FF', '#FFFFFF', '#DDF3FF']; snowflake.style.color = colors[Math.floor(Math.random() * colors.length)]; // 添加旋转动画 const rotation = Math.random() * 360; snowflake.element.style.transform = `rotate(${rotation}deg)`; ``` 4. **改进控制功能**: ```javascript // 暂停功能 let isPaused = false; document.getElementById('pauseSnow').addEventListener('click', () => { isPaused = !isPaused; if (!isPaused) animate(); }); // 在animate函数开头添加 if (isPaused) return; ``` 完整的功能增强建议: 1. **添加碰撞检测**(可选): ```javascript function checkCollisions() { for (let i = 0; i < snowflakes.length; i++) { for (let j = i + 1; j < snowflakes.length; j++) { const dx = snowflak

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