自定义日历组件，开发中，自定义生成需要的日历格式方法有哪些？

// import { Lunar } from 'lunar-javascript' 
import dateClass from '../beans/DateClass' 
import dayjs from 'dayjs' 
  
@Entry 
@Component 
struct DatePickerDialogExample01 { 
  weekList: Array<string> = ['一', '二', '三', '四', '五', '六', '日'] 
  @State show: boolean = false 
  @State selectDate: dayjs.Dayjs = dayjs() 
  @State selectMonth: string = dayjs().format('YYYY年MM月') 
  @State dataList: Array<dateClass> = [] 
  @State monthParam: number = 0 //切换日历的参数 
  
  build() { 
    Column() { 
      Button('弹出或关闭日历') 
        .height(36) 
        .fontSize(20) 
        .fontColor(Color.White) 
        .onClick(() => { 
          this.show = !this.show 
          this.selectDate = dayjs() 
          this.monthParam = 0 
          this.getDataList(this.monthParam) 
        }) 
  
      if (this.show) { 
        Row() { 
          Text(this.selectMonth) 
            .fontSize(16) 
            .fontColor(Color.White) 
          Row() { 
            Row() { 
              Image($r('app.media.icon_left')) 
                .width(24) 
                .height(12) 
                .backgroundColor(Color.Black) 
            } 
            .height('100%') 
            .width(48) 
            .alignItems(VerticalAlign.Center) 
            .justifyContent(FlexAlign.Center) 
            .onClick(() => { 
              this.monthParam-- 
              this.getDataList(this.monthParam) 
            }) 
  
            Row() { 
              Image($r('app.media.icon_right')) 
                .width(24) 
                .height(12) 
                .backgroundColor(Color.Black) 
            } 
            .height('100%') 
            .width(48) 
            .alignItems(VerticalAlign.Center) 
            .justifyContent(FlexAlign.Center) 
            .onClick(() => { 
              this.monthParam++ 
              this.getDataList(this.monthParam) 
            }) 
          } 
        } 
        .height(48) 
        .width('100%') 
        .justifyContent(FlexAlign.SpaceBetween) 
  
        Row() { 
          ForEach(this.weekList, (item: string) => { 
            Text(item) 
              .fontSize(16) 
              .fontColor(Color.White) 
              .width(48) 
              .textAlign(TextAlign.Center) 
          }) 
        } 
        .width('100%') 
  
        Grid() { 
          ForEach(this.dataList, (item: dateClass) => { 
            GridItem() { 
              Column() { 
                Text(item.day.toString()) 
                  .fontSize(16) 
                  .fontColor(Color.White) 
                  .width(48) 
                  .textAlign(TextAlign.Center) 
                  .opacity(item.isToMonth ? 1 : 0.4) 
                Text(item.lunarDay) 
                  .fontSize(12) 
                  .fontColor(Color.White) 
                  .width(48) 
                  .textAlign(TextAlign.Center) 
                  .opacity(item.isToMonth ? 1 : 0.4) 
              } 
              .width(48) 
              .height(48) 
              .alignItems(HorizontalAlign.Center) 
              .justifyContent(FlexAlign.Center) 
              .backgroundColor(item.dayjsObj.format('YYYY-MM-DD') == 
                               dayjs().format('YYYY-MM-DD') ? 
                '#007DFF' : Color.Black) 
              .borderWidth(1) 
              .borderColor(item.dayjsObj.format('YYYY-MM-DD') == 
                           this.selectDate.format('YYYY-MM-DD') ? 
                '#007DFF' : Color.Black) 
              .onClick(() => { 
                this.selectDate = item.dayjsObj 
              }) 
            } 
          }) 
        } 
        .height(288) 
        .columnsTemplate('1fr 1fr 1fr 1fr 1fr 1fr 1fr') 
        .rowsTemplate('1fr 1fr 1fr 1fr 1fr 1fr') 
        .columnsGap(0) 
        .rowsGap(0) 
      } 
    } 
    .width('100%') 
    .height('100%') 
    .backgroundColor(Color.Black) 
    .justifyContent(FlexAlign.Center) 
    .padding({ left: 12, right: 12 }) 
  } 
  
  getDataList(param: number) { 
    this.dataList = [] 
    let firstDate = dayjs().add(param, 'month').startOf('month') // 当月的第一天 
    let afterDate = dayjs().add(param, 'month').endOf('month') // 当月的最后一天 
    this.selectMonth = firstDate.format('YYYY年MM月') 
    let frontDay = 0 // 显示日历的第一天需要向前的天数 
    if (firstDate.day() == 0) { 
      frontDay = 6 
    } else { 
      frontDay = firstDate.day() - 1 
    } 
    let showFirstDay = firstDate.subtract(frontDay, 'day') // 显示日历的第一天 
    for (let i = 0;i < 42; i++) { 
      let dayjsObj = showFirstDay.add(i, 'day') 
      let day = dayjsObj.date() 
      let lunarDay = '' 
      // if (Lunar.fromDate(dayjsObj.toDate()).getFestivals().length !== 0) { // 显示节日 
      //   lunarDay = Lunar.fromDate(dayjsObj.toDate()).getFestivals()[0] 
      // } else if (Lunar.fromDate(dayjsObj.toDate()).getJieQi() !== '') { // 显示节气 
      //   lunarDay = Lunar.fromDate(dayjsObj.toDate()).getJieQi() 
      // } else { // 显示农历日期 
      //   lunarDay = Lunar.fromDate(dayjsObj.toDate()).getDayInChinese() 
      // } 
      let isToMonth = true 
      if (dayjsObj.isBefore(firstDate) || dayjsObj.isAfter(afterDate)) { 
        isToMonth = false 
      } 
      this.dataList.push(new dateClass(dayjsObj, day, lunarDay, isToMonth)) 
    } 
    //        console.log('aboutToAppear',JSON.stringify(this.dataList)) 
  } 
  
  aboutToAppear() { 
    this.getDataList(this.monthParam) 
  } 
} 
  
//DateClass 类 
import dayjs from 'dayjs' 
  
export default class DateClass { 
  dayjsObj: dayjs.Dayjs  // dayjs时间 
  day: number // 天 
  lunarDay: string // 农历 
  isToMonth: boolean // 是否当前月 
  
  constructor(dayjsObj: dayjs.Dayjs, day: number, lunarDay: string, isToMonth: boolean) { 
    this.dayjsObj = dayjsObj 
    this.day = day 
    this.lunarDay = lunarDay 
    this.isToMonth = isToMonth 
  } 
}
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