全部資料型別
int 整型/str 字串/float 浮點數/ list 列表/tuple 元組/dict 字典/set 集合
isinstance方法判斷
a =
input
('plz input a string ')if
isinstance
(a,int)
:print
('is int'
)elif isinstance
(a,str)
:print
('is str'
)else
:print
('is unknown'
)b =
input
('plz input a int '
)b =
int(b)
ifisinstance
(b,int)
:print
('is int'
)elif isinstance
(b,str)
:print
('is str'
)else
:print
('is unknown'
)
plz input a string 123sdf
is str
plz input a int 333
is int
a
=123b=
[123
,'a'
]print
(type(a
)==type(1
))print
(type(b
)==type([
]))
true
true
x =
input
('plz input a number '
) # only digit in
this string
# print
(x.isdigit()
)# print
(x.isdecimal()
)# x.
isnumeric()
if x.
isdigit()
:print
('ok1'
)elif x.
isdecimal()
:print
('ok2'
)elif x.
isnumeric()
:print
('ok3'
)else
: # 前三種方法都不能識別浮點數，如果輸入的是浮點數最後轉成浮點數型別驗證是不是浮點數
x =float
(x)print
(x)
暫時想到的只有強轉
# c =
input
('plz input any type'
)# c =
set(c)
# if
isinstance
(c,int)
:# print
('is int'
)# print
(c)# elif isinstance
(c,str)
:# print
('is str'
)# print
(c)# elif isinstance
(c,float)
:# print
('is float'
)# print
(c)# elif isinstance
(c,list)
:# print
('is list'
)# print
(c)# elif isinstance
(c,tuple)
:# print
('is tuple'
)# print
(c)# elif isinstance
(c,dict)
:# print
('is dict'
)# print
(c)# elif isinstance
(c,set):
# print
('is set'
)# print
(c)
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