Python Basics 01-20160510

1. Data type

1.1 Integral type

1.2 Floating-point type

1.3 Boolean type

Function: Judge false >>> 0 = = falsetrue>>> 1 = = Falsefalse

1.4 String

2. List

>>> name_list
[' Alex ', ' 65brother ', ' Tenglan ', ' lanyulei ', ' lanyulei ', ' lanyulei ', ' Lanyulei ']

>>> for I in range (Name_list.count (' Lanyulei ')):
... name_list.remove (' Lanyulei ')
...
>>> name_list
[' Alex ', ' 65brother ', ' Tenglan ']

>>> Help (Name_list)

>>> dir (name_list)
[' __add__ ', ' __class__ ', ' __contains__ ', ' __delattr__ ', ' __delitem__ ', ' __delsli
ce__ ', ' __doc__ ', ' __eq__ ', ' __format__ ', ' __ge__ ', ' __getattribute__ ', ' __getit
em__ ', ' __getslice__ ', ' __gt__ ', ' __hash__ ', ' __iadd__ ', ' __imul__ ', ' __init__ ',
  ' __iter__ ', ' __le__ ', ' __len__ ', ' __lt__ ', ' __mul__ ', ' __ne ' __ ', ' __new__ ', ' __r
educe__ ', ' __reduce_ex__ ', ' __repr__ ', ' __reversed__ ', ' __rmul__ ', ' __setattr__ '
, ' __ Setitem__ ', ' __setslice__ ', ' __sizeof__ ', ' __str__ ', ' __subclasshook__ ', ' a
ppend ', ' count ', ' extend ', ' index ', ' Insert ', ' pop ', ' remove ', ' reverse ', ' sort '
]

>>> name_list.append ("Xiaolan") >>> name_list[' Alex ', ' 65brother ', ' Tenglan ', ' Xiaolan ']>> > Name_list.insert (0, "Xiaolan") >>> name_list[' Xiaolan ', ' Alex ', ' 65brother ', ' Tenglan ', ' Xiaolan ']> >> name_list.count ("Xiaolan") 2>>> name_list.index ("65brother") 2>>> name_list[2] ' 65brother ' >>> name_list.remove ("Alex") >>> name_list[' Xiaolan ', ' 65brother ', ' Tenglan ', ' Xiaolan ']>> > Name_list.pop () ' Xiaolan ' >>> name_list[' Xiaolan ', ' 65brother ', ' Tenglan ']

Python Basics 01-20160510