Python创建日历实例

#coding=gbk# -*- coding: cp936 -*-# 制作一个日历(只显示阳历日期）'''实现方法：不使用python提供的calendar，根据给出的日期计算：1.先根据输入年份得到这一年的第一天是星期几（(year + (year - 1)/4 - (year - 1)/100 + (year -1)/400)% 7）2.再依据输入的日期（只需要年月就可以了）得到这个日期得到在当前年份的第几天3.根据1和2得到当前月份的第一天是星期几。4.创建日历，其实就是在5x7的表格中预先放置5*7个Label，分别表示1－31的情况（应该包含所有的情况）。5.将1－31从得到的位置开始打印出来，以7为一行。6.更新日历，当对日历头进行操作（改变日期时）就会更新日历显示的内容。7.整个组件的布局是7x7的表格方式。第一行显示日历头，包括年月日的显示与选择；第二行为显示的日期，3-7为显示的月份信息。'''class Calendar:  passAppCal = Calendar()import timedef calcFirstDayOfMonth(year,month,day):  '''计算某一日的是星期几'''  months = (0,31,59,90,120,151,181,212,243,273,304,334)  if 0 <= month <= 12:    sum = months[month - 1]  else:    print 'data error'  # 对年月做了判断，日只是加了上下限，没有根据月判断输入的是否合法  if year < 0 or month < 0 or month > 11 or day < 0 or day >31:    import os    os._exit(1)      sum += day  leap = 0  if (year % 400 == 0) or ((year % 4 == 0) and (year % 100 != 0)):    leap = 1  if (leap == 1) and (month > 2):    sum += 1  # 先计算某年的第一天是星期几  # (year + (year - 1)/4 - (year - 1)/100 + (year -1)/400)% 7  return (sum % 7 - 1 + (year + (year - 1)/4 - (year - 1)/100 + (year -1)/400))% 7def createMonth(master):  '''创建日历'''  for i in range(5):    for j in range(7):      Label(master,text = '').grid(row = i + 2,column = j)def updateDate():  ''' 更新日历'''  #得到当前选择的日期  year = int(AppCal.vYear.get())  month = int(AppCal.vMonth.get())  day = int(AppCal.vDay.get())  months = [31,28,31,30,31,30,31,31,30,31,30,31]    # 判断是否瑞年  if (year % 400 == 0) or ((year % 4 == 0) and (year % 100 != 0)):    months[1] += 1  fd = calcFirstDayOfMonth(year,month,1)  for i in range(5):    for j in range(7):      root.grid_slaves(i +2,j)[0]['text'] = ''  for i in range(1,months[month - 1] + 1):    root.grid_slaves((i + fd - 1)/7 + 2,(i + fd -1)%7)[0]['text'] = str(i)  def drawHeader(master):  '''添加日历头'''  # 得到当前的日期，设置为默认值  now = time.localtime(time.time())  col_idx = 0    # 创建年份组件  AppCal.vYear = StringVar()  AppCal.vYear.set(now[0])  Label(master,text = 'YEAR').grid(row = 0,column = col_idx);col_idx += 1  omYear = apply(OptionMenu,(master,AppCal.vYear) + tuple(range(2005,2010)))  omYear.grid(row = 0,column = col_idx);col_idx += 1  # 创建月份组件  AppCal.vMonth = StringVar()  AppCal.vMonth.set(now[1])  Label(master,text = 'Month').grid(row = 0,column = col_idx);col_idx += 1  omMonth = apply(OptionMenu,(master,AppCal.vMonth) + tuple(range(1,12)))  omMonth.grid(row = 0,column = col_idx);col_idx += 1  # 创建年份组件  AppCal.vDay = StringVar()  AppCal.vDay.set(now[2])  Label(master,text = 'DAY').grid(row = 0,column = col_idx);col_idx += 1  omDay = apply(OptionMenu,(master,AppCal.vDay) + tuple(range(1,32)))  omDay.grid(row = 0,column = col_idx);col_idx += 1  # 创建更新按钮  btUpdate = Button(master,text = 'Update',command = updateDate)  btUpdate.grid(row = 0,column = col_idx);col_idx += 1  # 打印星期标签  weeks = ['Sun.','Mon.','Tues.','Wed.','Thurs.','Fri.','Sat.']  for week in weeks:    Label(master,text = week).grid(row = 1,column = weeks.index(week))  from Tkinter import *root = Tk()drawHeader(root)createMonth(root)updateDate()root.mainloop()