//用户名正则，4到16位（字母，数字，下划线，减号）

let uPattern = /^[a-zA-Z0-9_-]{4,16}$/;

//密码强度正则，最少6位，包括至少1个大写字母，1个小写字母，1个数字，1个特殊字符

let pPattern = /^.*(?=.{6,})(?=.*\d)(?=.*[A-Z])(?=.*[a-z])(?=.*[!@#$%^&*? ]).*$/;

//正整数正则

let posPattern = /^\d+$/;

//负整数正则

let negPattern = /^-\d+$/;

//整数正则

let intPattern = /^-?\d+$/;

//Email正则

let ePattern = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

//手机号正则

let mPattern = /^1[345789]\d{9}$/;

//身份证号（18位）正则

let cP = /^[1-9]\d{5}(18|19|([23]\d))\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/;

//URL正则

let urlP = /^((https?|ftp|file):\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/;

//日期正则，简单判定,未做月份及日期的判定

let dP1 = /^\d{4}(\-)\d{1,2}\1\d{1,2}$/;

//日期正则，复杂判定

let dP2 = /^(?:(?!0000)[0-9]{4}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-8])|(?:0[13-9]|1[0-2])-(?:29|30)|(?:0[13578]|1[02])-31)|(?:[0-9]{2}(?:0[48]|[2468][048]|[13579][26])|(?:0[48]|[2468][048]|[13579][26])00)-02-29)$/;

//车牌号正则

let cPattern = /^[京津沪渝冀豫云辽黑湘皖鲁新苏浙赣鄂桂甘晋蒙陕吉闽贵粤青藏川宁琼使领A-Z]{1}[A-Z]{1}[A-Z0-9]{4}[A-Z0-9挂学警港澳]{1}$/;

//包含中文正则

let cnPattern = /[\u4E00-\u9FA5]/;