hl-web-admin/src/utils/get-img-width.js

import { Message } from 'element-ui'
export default function (file, width, height) {
    return new Promise(resolve => {
        let reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = function (e) {
            let txt = e.target.result;
            let img = document.createElement("img");
            img.src = txt;
            img.onload = function () {
                if (img.width === width && img.height === height) {
                    resolve(true)
                } else {
                    Message({
                        message: `图片上传失败,宽高错误`,
                        type: "warning",
                        duration: 5000
                    });
                    resolve(false);
                }
            };
        };
    })
}
// 1. 650   350
// 1. 650   350
// 1. 650   350
// 1. 650   350
// 1. 650   350