const load = async (imgSrc: string) => {
    return new Promise(resolve => {
        let image = new Image();
        image.onload = () => resolve(image);
        image.onerror = () => resolve(null);
        image.src = imgSrc;
    });
};

// 预加载图片
export async function loadImage(imgSrcs: string | string[]) {
    if (typeof imgSrcs === "string") {
        await load(imgSrcs);
    } else if (Array.isArray(imgSrcs)) {
        await Promise.all(imgSrcs.map(async src => {
            await load(src);
        }))
    }
}