获取鼠标粘贴板里的图片文件

let files = e.clipboardData.files
let fileList = Array.prototype.slice.call(files)
const regImgExt = /^(png|jpe?g|gif|bmp)$/

if (fileList.length) {
    let file = fileList[0]
    if (file.type.indexOf("image") !== -1) {
        if (regImgExt.test(file.type.replace(/.*\//, ''))) {
            console.log(file)
        }
    }
}