循环获取年、月、日、周（天数可控）

￡神魔★判官ぃ 2022-12-31 11:19 159阅读 0赞

weekDate() {
         //获取周数据
                    var myDate = new Date(); // hehe
                    myDate.toLocaleDateString();
                    var month = myDate.getMonth() + 1;
                    var time = myDate.getFullYear() + '年' + month + '月' + myDate.getDate() + '日';
                    var total = 1; // 个数
                    var dayList = [];
                    dayList.push({
        
                        'YYMMDD': myDate.getFullYear() + "/" + (myDate.getMonth() + total) + "/" + myDate.getDate(),
                        'year': myDate.getFullYear(),
                        'month': myDate.getMonth() + total,
                        'day': myDate.getDate(),
                        'week': this.toWeekDay(myDate.getDay())
                    });
                    for (var i = 0; i < 6; i++) {
        // number 是最近几天  则会自动计算
                        myDate.setDate(myDate.getDate() + total);
                        // 需求  月份-日   星期几      
                        dayList.push({
        
                            'YYMMDD': myDate.getFullYear() + "/" + (myDate.getMonth() + total) + "/" + myDate.getDate(),
                            'year': myDate.getFullYear(),
                            'month': myDate.getMonth() + total,
                            'day': myDate.getDate(),
                            'week': this.toWeekDay(myDate.getDay())
                        })
                    }
                    // return dayList;
                    let length = dayList.length
                    let arrOne = dayList[0]
                    let arrLast = dayList[length - 1]
                    let StartDate = arrOne.year.toString() + '-' + arrOne.month + '-' + arrOne.day
                    let EndDate = arrLast.year.toString() + '-' + arrLast.month + '-' + arrLast.day
                    return {
        
                        dayList,
                        StartDate,
                        EndDate
                    }
                },
    
                toWeekDay(weekDay) {
         // 传入数据  讲一周的某一天返回成中文状态下的字符
                    switch (weekDay) {
        
                        case 1:
                            return '一';
                            break;
                        case 2:
                            return '二';
                            break;
                        case 3:
                            return '三';
                            break;
                        case 4:
                            return '四';
                            break;
                        case 5:
                            return '五';
                            break;
                        case 6:
                            return '六';
                            break;
                        case 0:
                            return '日';
                            break;
                        default:
                            break;
                    }
                    return '传入未知参数';
    
                }

**效果**  
0: \{YYMMDD: “2020/12/29”, year: 2020, month: 12, day: 29, week: “二”\}  
1: \{YYMMDD: “2020/12/30”, year: 2020, month: 12, day: 30, week: “三”\}  
2: \{YYMMDD: “2020/12/31”, year: 2020, month: 12, day: 31, week: “四”\}  
3: \{YYMMDD: “2021/1/1”, year: 2021, month: 1, day: 1, week: “五”\}  
4: \{YYMMDD: “2021/1/2”, year: 2021, month: 1, day: 2, week: “六”\}  
5: \{YYMMDD: “2021/1/3”, year: 2021, month: 1, day: 3, week: “日”\}  
6: \{YYMMDD: “2021/1/4”, year: 2021, month: 1, day: 4, week: “一”\}