整數(shù)型:int,浮點(diǎn)型:floot,字符串:str,布爾值:bool,列表:list,元組:tuple,字典
dict
常用的系統(tǒng)函數(shù):
Type():判斷數(shù)據(jù)的類(lèi)型
Len():計(jì)算集合的長(zhǎng)度,length的縮寫(xiě)
Sum():計(jì)算數(shù)值型序列的總和
Max()/min():計(jì)算純數(shù)據(jù)集合的最大值/最小值
Input():接收用戶(hù)的鍵盤(pán)輸入
type()
ingeter = 123
float1 = 10.999
bool1 = 1<2
string1 = 'abc'
list1 = []
tuple1 = ()
print(type(ingeter))
print(type(float1))
print(type(bool1))
print(type(string1))
print(type(list1))
print(type(tuple1))
輸出:
<class 'int'>
<class 'float'>
<class 'bool'>
<class 'str'>
<class 'list'>
<class 'tuple'>
len()
# print(len(123)) 是錯(cuò)誤的,整型不是集合
# print(len(20.22)) 是錯(cuò)誤的,浮點(diǎn)數(shù)不是集合
# print(len(bool(0))) 是錯(cuò)誤的,布爾值不是集合
print(len('abc'))
print(len([[]]))
print(len(((),)))
print(len(''))
輸出:
3
1
1
0
sum()
i = [1.6,2,9,4,5,6]
print(sum(i))
i = (1.6,2,4,5,6)
print(sum(i))
i = [1.6]
print(sum(i))
i = (1.6,)
print(sum(i))
輸出:
27.6
18.6
1.6
1.6
max()/min()
string1 = 'abc'
string4 = (4,3,7,8,2)
cun = [1,2,3,4,5,6]
print(max(4,6,9,8))
print(min(cun))
print(max(string4))
輸出:
9
1
8
input()
i = 0
i = input()
print('你好!')
print(i)
你好!我是你盆友。
你好!
你好!我是你盆友。