js 代码 keydown

document.addEventListener('keydown', function(event) {
    console.log('Key pressed:', event.key);
    // 根据不同的键执行不同的操作
    switch (event.key) {
        case 'ArrowUp':
            console.log('上箭头被按下');
            break;
        case 'ArrowDown':
            console.log('下箭头被按下');
            break;
        // 其他按键的处理...
    }
});

function debounce(func, wait) {
    let timeout;
    return function(...args) {
        clearTimeout(timeout);
        timeout = setTimeout(() => func.apply(this, args), wait);
    };
}

document.addEventListener('keydown', debounce(function(event) {
    console.log('Key pressed:', event.key);
}, 100));

document.addEventListener('keydown', function(event) {
    let key = event.key || event.keyCode;
    console.log('Key pressed:', key);
});

document.addEventListener('keydown', function(event) {
    if (event.code === 'F1') {
        console.log('F1 键被按下');
    }
});