内置函数的表格与详情

>>> abs(-5)
5

>>> all([-1,2,3,4,5])
True

>>> all((-1,2,3,4))
True

>>> all([])
True

>>> all([-1,0,2,3,4])
False

>>> any([-1,0,1,2,3])
True
>>> any([])
False
>>> any([0])
False
>>> any([1])
True

>>> ascii([1,2,3,4])
'[1, 2, 3, 4]'

>>> bin(11111)
'0b10101101100111'
>>> bin(-1223)
'-0b10011000111'

>>> bin(1.2)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'float' object cannot be interpreted as an integer

>>> bool([1,2,3,4])
True
>>> bool([])
False
>>> bool("1")
True
>>> bool("sfasfsa")
True
>>> bool("")
False
>>> bool(-1)
True
>>> bool(0)
False
>>> bool()
False
>>> bool({})
False
>>> bool({"sdf":1})
True
>>> bool(())
False
>>> bool((1,2))
True
>>> bool(3>5)
False
>>> bool(3<5)
True

>>> b=bytearray("abcd",encoding="utf-8")
>>> b[0]     # 打印第一个元素的ascii值
97
>>> b[0]=100   # 修改第一个元素的ascii值，赋值只能是ascii值
>>> b
bytearray(b'dbcd')

>>> b=bytes("abcd",encoding="utf-8")
>>> b
b'abcd'
>>> b[0]
97
>>> b[0]=100
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'bytes' object does not support item assignment

>>> callable([])
False
>>> def bus():pass
...
>>> callable(bus)
True

>>> chr(99)
'c'

>>> ord("c")
99

#传入非固定关键字参数
>>> dict(name="bigberg",age=22)
{'name': 'bigberg', 'age': 22}

# 传入列表
>>> s_list=[("name","bigberg"),("age",22)]
>>> dict(s_list)
{'name': 'bigberg', 'age': 22}

>>> n_list=[['names',['zhangsan','lisi','wangwu']],['job',['doctor','teacher','police']]]
>>> dict(n_list)
{'names': ['zhangsan', 'lisi', 'wangwu'], 'job': ['doctor', 'teacher', 'police']}

>>> divmod(14,3)
(4, 2)

fruits = ['apple', 'orange', 'banana']
print(list(enumerate(fruits)))

#输出
[(0, 'apple'), (1, 'orange'), (2, 'banana')]

>>> s = "5+989"
>>> eval(s)
994