jQuery 日期字符串與年月日格式的互化

        // 處理日期'2020年3月19日'->'2020-3-19'
        function dealDateToStr(dealDate) {
            let split_1 = dealDate.split('年');
            let year = split_1[0];
            let split_2 = split_1[1].split('月');
            let month = '';
            if (split_2[0].length < 2) {
                month = '0' + split_2[0]
            } else {
                month = split_2[0]
            }
            let split_3 = split_2[1].split('日');
            let day = '';
            if (split_3[0].length < 2) {
                day = '0' + split_3[0]
            } else {
                day = split_3[0]
            }
            return year + '-' + month + '-' + day
        }

        // 處理日期'2020-3-19'->'2020年3月19日'
        function dealStrToDate(dealDate) {
            let split_1 = dealDate.split('-');
            let year = split_1[0];
            let month = split_1[1];
            let day = split_1[2];
            if (new RegExp("^0").test(month)) {
                month = month[1]
            }
            if (new RegExp("^0").test(day)) {
                day = day[1]
            }
            return year + '年' + month + '月' + day + '日'
        }