[Python知识库]python crash coures python编程从入门到实践 笔记1 python常见函数

一些内置函数
str.title()  #.function()  nothing in parentheses means no argument is given
str.upper()
str.lower()
str.lstrip()
str.rstrip()

List.append()
List.insert()
del List[0]
List.pop()   # remove the last one
List.pop(position) # remove by position
List.remove(value) # remove by value
List.sort()
sorted(List)
List.reverse()
len(List)
squares_List = [value**2 for value in range(1,9)]

motorcycles = ['honda', 'yamaha', 'suzuki']
motorcycles.insert(0, 'ducati')
del motorcycles[0]

value in List
value not in List

# to make sure that a list is not empty
request_List = []
if request_List:
   ...
else:
   print('no request')



# attention!!! the correct way to copy a list
List_2 = List_1[:]

3**3 #3的3次方



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