Python学习笔记
发布时间 2023-09-26 11:14:46作者: 人间二两风
pip安装包命令
pip install numpy -i https://pypi.douban.com/simple #安装（指定国内源来安装）
pip install --upgrade numpy #升级
pip uninstall numpy #卸载
pip list #查看
pip list -o #查看需要被升级的包
pip show -f numpy #查看某个包的信息
pip check numpy #查看兼容问题
pip download numpy -d "." #下载包但不安装
国内镜像源
清华源： https://pypi.tuna.tsinghua.edu.cn/simple/
阿里云： http://mirrors.aliyun.com/pypi/simple/
豆瓣源： https://pypi.douban.com/simple
内置函数
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| A |
abs(x) |
aiter(async_iterable) |
all(iterable) |
anext(async_iterator, default) |
any(iterable) |
ascii(object) |
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| B |
bin(x) |
bool(x=False) |
breakpoint(*args, **kws) |
bytearray(source, encoding, errors) |
bytes(source, encoding, errors) |
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| C |
callable(object) |
chr(i) |
classmethod() |
compile() |
complex() |
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| D |
delattr(object, name) |
dict(iterable, **kwarg) |
dir() |
divmod(a, b) |
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| E |
enumerate(iterable, start=0) |
eval(expression, globals=None, locals=None) |
exec(object, globals=None, locals=None, /, *, closure=None) |
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| F |
filter(function, iterable) |
float(x=0.0) |
format(value, format_spec='') |
frozenset(iterable=set()) |
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| G |
getattr(object, name, default) |
globals() |
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| H |
hasattr(object, name) |
hash(object) |
help(request) |
hex(x) |
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| I |
id(object) |
input(prompt) |
int(x, base=10) |
isinstance(object, classinfo) |
issubclass(class, classinfo) |
iter(object, sentinel) |
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| L |
len(s) |
list(iterable) |
locals() |
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| M |
map(function, iterable, *iterables) |
max(iterable, *[, key, default]) |
min(iterable, *[, key, default]) |
memoryview(object) |
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| N |
next(iterator, default) |
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| O |
object() |
oct(x) |
open(file, ...) |
ord(c) |
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| P |
pow(base, exp, mod=None) |
print(*objects, sep=' ', end='\n', file=sys.stdout, flush=False) |
property(fget=None, fset=None, fdel=None, doc=None) |
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| R |
range(start, stop, step=1) |
repr(object) |
reversed(seq) |
round(number, ndigits=None) |
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| S |
set(iterable) |
setattr(object, name, value) |
slice(start, stop, step=None) |
sorted(iterable, /, *, key=None, reverse=False) |
staticmethod() |
str(object=b'', encoding='utf-8', errors='strict') |
sum(iterable, start=0) |
super(type, object_or_type=None) |
| T |
tuple(iterable) |
type(object) |
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| V |
vars(object) |
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| Z |
zip(*iterables, strict=False) |
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| __import__() |
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