getImagesWidthHeight.js

// 获取图片的宽和高
function getImagesWidthHeight(url = "blob | base64 | url") {
    return new Promise((ret) => {
        let img = new Image()
        img.src = url
        img.onload = function() {
            ret({
                width: this.width,
                height: this.height,
                image: this
            })
        }
    })
}