本文共 898 字，大约阅读时间需要 2 分钟。

const isSize = new Promise(function(resolve, reject) {                let width = 60;                let height = 60;                let _URL = window.URL || window.webkitURL;                         let img = new Image();                img.onload = function() {                    debugger                    let valid = img.width >= width && img.height >= height;                    valid ? resolve() : reject();                }                img.src = _URL.createObjectURL(file);                }).then(() => {                    return file;                }, () => {                    this.$message.error('上传的icon必须是等于60*60!');                    console.log(this.imgFileList);                    this.hideUpload = false                      this.imgFileList = []  //将上传的图片清空                    return Promise.reject();                                    });                return  isSize;

转载地址：http://ekylf.baihongyu.com/