MAP（字典）在Python里的作用？

字典中的每一項(xiàng)都有一個(gè)鍵和一個(gè)對(duì)應(yīng)的值。你可以根據(jù)鍵找到值。

>>> favorite_sports = {'Ralph Williams' : 'Football','Michael Tippett' :'Basketball',

'Edward Elgar' : 'Baseball','Rebecca Clarke' : 'Netball','Ethel Smyth' : 'Badminton',

'Frank Bridge' : 'Rugby'}

>>> print(favorite_sports[‘Rebecca Clarke’])       #找到RebeccaClarke喜歡的運(yùn)動(dòng)

>>>del favorite_sports[‘Ethel Smyth’]                   #從字典中刪除EthelSmyth數(shù)據(jù)

>>>favorite_sports[‘Ethel Smyth’] = ‘Ice Hockey‘    #修改Ethel Smyth喜歡的運(yùn)動(dòng)

>>>favorite_sports[‘Can Can’]=‘tennis’                 #追加cancan喜歡的項(xiàng)目