1.字典(使用花括号定义) dairy_section = {} dairy_section["breakfast"] = ("break","milk") dairy_section["lunch"] = ("noodles","rices","dishes") dairy_section["dinner"] = ("porridge","steamed bun") 读取时可以使用: 1)print(dairy_section):显示全部的值 2)dairy_section.get("breakfast"):读取特定值 3)从字典中取键 print_keys = dairy_section.keys() print_values = dairy_section.values()
元组(列表)名称[-1],依次类推,比如week = ("Sunday","monday","Tuesday") 可使用print(week[-1])打印出"Tuesday"
1)将元组分片:例如workday = ("Monday","Tuesday","Wednesday","Thursday","Friday") print(workday[0:2]),显示"Monday",“Tuesday” 2)将列表分片:例如workday = ["Mondy","Tuesday","Wednesday","Thursday","Friday"] print(workday[1:3]),显示"Tuesday","Wednesday" 3)将字符分片:例如workday = "from Monday to friday" print(workday[2:5]),显示"om " today_times = [2,5,3,6] A = today_times.pop(0) print(A),显示2,且print(today_times)时显示[5,3,6]
len(元组名或列表名或字典名)
alphabet = ['a','b','b','c','d','e','e'] alph2 = set(alphabet) print(alph2)显示{'a','b','c','d','e'}
2.引用序列的最后一个元素(元组和列表均属于序列)
3.将序列分片
4.从列表中弹出元素
5.计算元组、列表或字典的长度
6.处理集合