Function initDate

component/Calender.js:23–27

(date=this.props.value)

    },

    initDate(date=this.props.value){
        const {year, month, day} = dateStr2Obj(date, this.dateParams());
        const value = obj2DateStr(year, month, day);
        return {year, month, day, value}
    },

    handleClick(date){
        const value = date2DateStr(date);