lukongtou-front/src/utils/imageSize.js

export function useImageSize(src) {
    return new Promise((resolve, reject) => {
        const img = new Image()
        img.onload = () => {
            resolve({
                width: img.width,
                height: img.height
            })
        }
        img.onerror = reject
        img.src = src
    })
}