js模拟键盘输入字符串

function simulateTyping(element, text) {
    let index = 0;

    function type() {
        if (index < text.length) {
            const char = text[index];
            const event = new KeyboardEvent('keydown', {
                bubbles: true,
                cancelable: true,
                key: char,
                code: `Key${char.toUpperCase()}`
            });

            element.dispatchEvent(event);

            setTimeout(() => {
                const keyupEvent = new KeyboardEvent('keyup', {
                    bubbles: true,
                    cancelable: true,
                    key: char,
                    code: `Key${char.toUpperCase()}`
                });
                element.dispatchEvent(keyupEvent);
                index++;
                type();
            }, 50); // 模拟按键间隔
        }
    }

    type();
}

// 使用示例
const inputElement = document.getElementById('myInput');
simulateTyping(inputElement, 'Hello, World!');