Python中的operator库

Python中的operator库

这个模块提供了一系列的函数操作。比如，operator.add(x, y)等于x+y

a = [1,2,3]

b = [5,6,7]

c = map(operator.mul, a, b)

c的值就为[5, 12, 21]

abs(...)

abs(a) -- Same as abs(a).

add(...)

add(a, b) -- Same as a + b.

and_(...)

and_(a, b) -- Same as a & b.

concat(...)

concat(a, b) -- Same as a + b, for a and b sequences.

contains(...)

contains(a, b) -- Same as b in a (note reversed operands).

countOf(...)

countOf(a, b) -- Return the number of times b occurs in a.

delitem(...)

delitem(a, b) -- Same as del a[b].

delslice(...)

delslice(a, b, c) -- Same as del a[b:c].

div(...)

div(a, b) -- Same as a / b when __future__.division is not in effect.

eq(...)

eq(a, b) -- Same as a==b.

floordiv(...)

floordiv(a, b) -- Same as a // b.

ge(...)

ge(a, b) -- Same as a>=b.

getitem(...)

getitem(a, b) -- Same as a[b].

getslice(...)

getslice(a, b, c) -- Same as a[b:c].

gt(...)

gt(a, b) -- Same as a>b.

iadd(...)

iadd(a, b) -- Same as a += b.

iand(...)

iand(a, b) -- Same as a &= b.

iconcat(...)

iconcat(a, b) -- Same as a += b, for a and b sequences.

idiv(...)

idiv(a, b) -- Same as a /= b when __future__.division is not in effect.

ifloordiv(...)

ifloordiv(a, b) -- Same as a //= b.

ilshift(...)

ilshift(a, b) -- Same as a <<= b.

imod(...)

imod(a, b) -- Same as a %= b.

imul(...)

imul(a, b) -- Same as a *= b.

index(...)

index(a) -- Same as a.__index__()

indexOf(...)

indexOf(a, b) -- Return the first index of b in a.

inv(...)

inv(a) -- Same as ~a.

invert(...)

invert(a) -- Same as ~a.

ior(...)

ior(a, b) -- Same as a |= b.

ipow(...)

ipow(a, b) -- Same as a **= b.

irepeat(...)

irepeat(a, b) -- Same as a *= b, where a is a sequence, and b is an integer.

irshift(...)

irshift(a, b) -- Same as a >>= b.

isCallable(...)

isCallable(a) -- Same as callable(a).

isMappingType(...)

isMappingType(a) -- Return True if a has a mapping type, False otherwise.

isNumberType(...)

isNumberType(a) -- Return True if a has a numeric type, False otherwise.

isSequenceType(...)

isSequenceType(a) -- Return True if a has a sequence type, False otherwise.

is_(...)

is_(a, b) -- Same as a is b.

is_not(...)

is_not(a, b) -- Same as a is not b.

isub(...)

isub(a, b) -- Same as a -= b.

itruediv(...)

itruediv(a, b) -- Same as a /= b when __future__.division is in effect.

ixor(...)

ixor(a, b) -- Same as a ^= b.

le(...)

le(a, b) -- Same as a<=b.

lshift(...)

lshift(a, b) -- Same as a << b.

lt(...)

lt(a, b) -- Same as a

mod(...)

mod(a, b) -- Same as a % b.

mul(...)

mul(a, b) -- Same as a * b.

ne(...)

ne(a, b) -- Same as a!=b.

neg(...)

neg(a) -- Same as -a.

not_(...)

not_(a) -- Same as not a.

or_(...)

or_(a, b) -- Same as a | b.

pos(...)

pos(a) -- Same as +a.

pow(...)

pow(a, b) -- Same as a ** b.

repeat(...)

repeat(a, b) -- Return a * b, where a is a sequence, and b is an integer.

rshift(...)

rshift(a, b) -- Same as a >> b.

sequenceIncludes(...)

sequenceIncludes(a, b) -- Same as b in a (note reversed operands; deprecated).

setitem(...)

setitem(a, b, c) -- Same as a[b] = c.

setslice(...)

setslice(a, b, c, d) -- Same as a[b:c] = d.

sub(...)

sub(a, b) -- Same as a - b.

truediv(...)

truediv(a, b) -- Same as a / b when __future__.division is in effect.

truth(...)

truth(a) -- Return True if a is true, False otherwise.

xor(...)

xor(a, b) -- Same as a ^ b.