字典例 •缩略语字典 abbr =etc':'cetera',cf:'confer',"ibid':'ibidem' 查找：abbr[etc]返回cetera 修改：abbr[etc]=‘et cetera'. ·月份映射表 month =1:'Jan',2:'Feb',3:'March',4:'April' 显示：print month[1] 增加键值对：month[4]=‘April' Lu Chaojun,SJTU 15字典例 • 缩略语字典 abbr = {‘etc’:’cetera’ , ‘cf’:’confer’ , ’ibid’:’ibidem’} 查找:abbr[‘etc’]返回cetera 修改:abbr[‘etc’] = ‘et cetera’. • 月份映射表 month = {1:’Jan’ , 2:’Feb’ , 3:’March’ ,4:’April’} 显示: print month[1] 增加键值对:month[4] = ‘April’ Lu Chaojun, SJTU 15