前端存储cookie操作

CV

			/**
			 * 设置cookie
			 **/
			function setCookie(name, value, day) {
				if(typeof day == 'number'){
					let date = new Date();
					date.setDate(date.getDate() + day);
					document.cookie = name + '=' + value + ';expires=' + date;					
				}
			};
			
			/**
			 * 获取cookie
			 **/
			function getCookie(name) {
			    let reg = RegExp(name + '=([^;]+)');
			    let arr = document.cookie.match(reg);
			    if (arr) {
			        return arr[1];
			    } else {
			        return '';
			    }
			};
			
			/**
			 * 删除cookie
			 **/
			function delCookie(name) {
			    setCookie(name, null, -1);
			};