-
Text Type
str
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Numeric Types
int,float,complex- complex 复数
a = complex(1) # Passing single parameter b = complex(1,2) # Passing both parameters (1+0j) (1+2j) -
Sequence Types
list,tuple,range,set
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Mapping Type
dict
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Slice: 左闭右开
Set
myset = {"apple", "banana", "cherry"}
myset.add(word)
All elements are unique
A set is a collection which is unordered, unchangeable, and unindexed.
Note: Set items are unchangeable, but you can remove items and add new items.
newtup = tuple(set(tup)–{'PYTHON'}) # 去重同时删除数据项
Tuple
Elements can’t be changed
lenmaxmintuple(seq)
Dictionary
**args
people = {
"Carter": "+1-617-495-1000",
"David": "+1-949-468-2750"
}
name = get_string("Name: ")
if name in people:
number = people[name] # index by first map
print(f"Number: {number}")
my_dict = {"Name":[],"Address":[],"Age":[]};
my_dict["Name"].append("Guru")
my_dict["Address"].append("Mumbai")
my_dict["Age"].append(30)
print(my_dict)
{'Name': ['Guru'], 'Address': ['Mumbai'], 'Age': [30]}
