部分js代碼

1. var that=this;
2. function getThisMonthDays(year, month) {
3. return new Date(year, month, 0).getDate();
4. }
5. // 計算每月第一天是星期幾
6. function getFirstDayOfWeek(year, month) {
7. return new Date(Date.UTC(year, month - 1, 1)).getDay();
8. }
9. const date = new Date();
10. const cur_year = date.getFullYear();
11. const cur_month = date.getMonth() + 1;
12. const cur_date=date.getDate();
13. const weeks_ch = ['日', '一', '二', '三', '四', '五', '六'];
14. //利用構(gòu)造函數(shù)創(chuàng)建對象
15. function calendar(date,week){
16. this.date=cur_year+'-'+cur_month+'-'+date;
17. if(date==cur_date){
18. this.week = "今天";
19. }else if(date==cur_date+1){
20. this.week = "明天";
21. }else{
22. this.week = '星期' + week;
23. }
24. }
25. //當(dāng)前月份的天數(shù)
26. var monthLength= getThisMonthDays(cur_year, cur_month)
27. //當(dāng)前月份的第一天是星期幾
28. var week = getFirstDayOfWeek(cur_year, cur_month)
29. var x = week;
30. for(var i=1;i<=monthLength;i++){
31. //當(dāng)循環(huán)完一周后，初始化再次循環(huán)
32. if(x>6){
33. x=0;
34. }
35. //利用構(gòu)造函數(shù)創(chuàng)建對象
36. that.data.calendar[i] = new calendar(i, [weeks_ch[x]][0])
37. x++;
38. }
39. //限制要渲染的日歷數(shù)據(jù)天數(shù)為7天以內(nèi)（用戶體驗）
40. var flag = that.data.calendar.splice(cur_date, that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length:7)
41. that.setData({
42. calendar: flag
43. })
44. //設(shè)置scroll-view的子容器的寬度
45. that.setData({
46. width: 186 * parseInt(that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length : 7)
47. })