const isEmpty = function isEmpty(obj) { if (typeof obj == "undefined" || obj == null || obj == "") { return true; } return false; } const checkChinese = function(val) { let reg = new RegExp("[\\u4E00-\\u9FFF]+", "g"); if (reg.test(val)) { return true; } return false; } //生成从minNum到maxNum的随机数 const randomNum = function(minNum, maxNum) { switch (arguments.length) { case 1: return parseInt(Math.random() * minNum + 1, 10); case 2: return parseInt(Math.random() * (maxNum - minNum + 1) + minNum, 10); default: return 0; } } const randomString = (len) => { len = len || 32; var $chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678'; var maxPos = $chars.length; var pwd = ''; for (var i = 0; i < len; i++) { pwd += $chars.charAt(Math.floor(Math.random() * maxPos)); } return pwd; } export default { isEmpty, checkChinese, randomNum, randomString, }