
import random

def print_info():
    print("欢迎来到体育竞技模拟器")
    print("请输入A和B队员的能力(0到1之间的小数)")

def get_inputs():
    a = eval(input("请输入A的能力(0-1):"))
    b = eval(input("请输入B的能力(0-1):"))
    n = eval(input("请输入要模拟的次数:"))
    return a,b,n

def simulate_N(a,b,n):
    win_a, win_b = (0, 0)
    for i in range(n):
        score_a ,score_b = simulate_one(a,b)
        if score_a > score_b:
            win_a+=1
        else:
            win_b+=1
    return win_a,win_b

def simulate_one(a,b):
    score_a,score_b = (0,0)
    ball_control_list = {"A","B"}
    ball_control =  ball_control_list.pop() # 假定A或者B先发球
    while not game_over(score_a,score_b):
        # 根据能力判定谁赢了这一局
        # 假定发球和能力十分相关
        if ball_control== "A":
            if random.random()<a:
                score_a+=1
            else:
                ball_control = "B"
        else:
            if random.random()<b:
                score_b+=1
            else:
                ball_control = "A"
    return score_a,score_b

def game_over(score_a,score_b):
    return score_a==15 or score_b==15

def print_summary(wins_a,wins_b):
    n = wins_a+wins_b
    print("共模拟比赛{}场".format(n))
    print("A获胜{}场，胜率为{}".format(wins_a,wins_a/n))
    print("B获胜{}场，胜率为{}".format(wins_b,wins_b/n))

print_info()
a,b,n = get_inputs()
win_a,win_b = simulate_N(a,b,n)
print_summary(win_a,win_b)


!pip3 -h

Usage:   
  pip3 <command> [options]

Commands:
  install                     Install packages.
  download                    Download packages.
  uninstall                   Uninstall packages.
  freeze                      Output installed packages in requirements format.
  list                        List installed packages.
  show                        Show information about installed packages.
  check                       Verify installed packages have compatible dependencies.
  config                      Manage local and global configuration.
  search                      Search PyPI for packages.
  cache                       Inspect and manage pip's wheel cache.
  index                       Inspect information available from package indexes.
  wheel                       Build wheels from your requirements.
  hash                        Compute hashes of package archives.
  completion                  A helper command used for command completion.
  debug                       Show information useful for debugging.
  help                        Show help for commands.

General Options:
  -h, --help                  Show help.
  --debug                     Let unhandled exceptions propagate outside the
                              main subroutine, instead of logging them to
                              stderr.
  --isolated                  Run pip in an isolated mode, ignoring
                              environment variables and user configuration.
  -v, --verbose               Give more output. Option is additive, and can be
                              used up to 3 times.
  -V, --version               Show version and exit.
  -q, --quiet                 Give less output. Option is additive, and can be
                              used up to 3 times (corresponding to WARNING,
                              ERROR, and CRITICAL logging levels).
  --log <path>                Path to a verbose appending log.
  --no-input                  Disable prompting for input.
  --proxy <proxy>             Specify a proxy in the form
                              [user:passwd@]proxy.server:port.
  --retries <retries>         Maximum number of retries each connection should
                              attempt (default 5 times).
  --timeout <sec>             Set the socket timeout (default 15 seconds).
  --exists-action <action>    Default action when a path already exists:
                              (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.
  --trusted-host <hostname>   Mark this host or host:port pair as trusted,
                              even though it does not have valid or any HTTPS.
  --cert <path>               Path to PEM-encoded CA certificate bundle. If
                              provided, overrides the default. See 'SSL
                              Certificate Verification' in pip documentation
                              for more information.
  --client-cert <path>        Path to SSL client certificate, a single file
                              containing the private key and the certificate
                              in PEM format.
  --cache-dir <dir>           Store the cache data in <dir>.
  --no-cache-dir              Disable the cache.
  --disable-pip-version-check
                              Don't periodically check PyPI to determine
                              whether a new version of pip is available for
                              download. Implied with --no-index.
  --no-color                  Suppress colored output.
  --no-python-version-warning
                              Silence deprecation warnings for upcoming
                              unsupported Pythons.
  --use-feature <feature>     Enable new functionality, that may be backward
                              incompatible.
  --use-deprecated <feature>  Enable deprecated functionality, that will be
                              removed in the future.


! pip3 search blockchain # 即将被废弃
! pip_search blockchain # 正确用法

ERROR: XMLRPC request failed [code: -32500]
RuntimeError: PyPI's XMLRPC API is currently disabled due to unmanageable load and will be deprecated in the near future. See https://status.python.org/ for more information.


import os.path
os.chdir("/Users/caiguu/PycharmProjects/pythonLearn")
print(os.path.abspath("data.csv"))
print(os.path.normpath(os.path.abspath("data.csv")))
print(os.path.relpath("data.csv"))
print(os.path.relpath("/System/Applications/Messages.app"))
print(os.path.dirname("/System/Applications/Messages.app"))
print(os.path.basename("/System/Applications/Messages.app"))
print(os.path.join("/System","Applications","Messages.app"))
print(os.path.exists("/System/Applications/Messages.app"))
print(os.path.exists("/System/Applications/QQ.app"))
print(os.path.isfile("/System/Applications/Messages.app"))
print(os.path.isdir("/System/Applications/Messages.app")) #很显然macOS中的.app都是目录
print(os.path.isfile('data.csv'))

/Users/caiguu/PycharmProjects/pythonLearn/data.csv
/Users/caiguu/PycharmProjects/pythonLearn/data.csv
data.csv
../../../../System/Applications/Messages.app
/System/Applications
Messages.app
/System/Applications/Messages.app
True
False
False
True
True


import os.path
print(os.path.getatime("data.csv")) #access
print(os.path.getmtime("data.csv")) #modify
print(os.path.getctime("data.csv")) #create

1645429359.6352324
1645354605.9654377
1645354605.9654377


print(os.path.getsize("data.csv"))

232


os.system("/Applications/云天气.app/Contents/MacOS/云天气")

2022-02-22 16:11:16.493 云天气[2563:2007491] *** WARNING: Textured window <AtomNSWindow: 0x7f800af2e0b0> is getting an implicitly transparent titlebar. This will break when linking against newer SDKs. Use NSWindow's -titlebarAppearsTransparent=YES instead.
https://mtapi.ruanmei.com/api/calendar/getfestival?appver=1.02&platform=macos&abestmorale=true Error: 404 Not Found
    at /Applications/云天气.app/Contents/Resources/app.asar/src/utils/fetch.js:1:550
    at processTicksAndRejections (internal/process/task_queues.js:86:5)

0


os.chdir("/Users/caiguu/PycharmProjects/pythonLearn")
print(os.getcwd())
print(os.getlogin())
print(os.cpu_count())
print(os.urandom(12))

/Users/caiguu/PycharmProjects/pythonLearn
caiguu
10
b'+Y\xca\x9b\x0fT\x0cXV\xb1\xc2b'


import os
libs = {"numpy","matplotlib","pillow","sklearn","requests","jieba"\
        ,"beautifulsoup4","wheel","sympy","pandas"}
try:
    for lib in libs:
        os.system("pip3 install "+lib)
    print("Finished")
except:
    print("Failed!")

Requirement already satisfied: wheel in /opt/homebrew/lib/python3.10/site-packages (0.37.0)

WARNING: You are using pip version 21.3.1; however, version 22.0.3 is available.
You should consider upgrading via the '/opt/homebrew/opt/python@3.10/bin/python3.10 -m pip install --upgrade pip' command.

Requirement already satisfied: beautifulsoup4 in /opt/homebrew/lib/python3.10/site-packages (4.10.0)
Requirement already satisfied: soupsieve>1.2 in /opt/homebrew/lib/python3.10/site-packages (from beautifulsoup4) (2.3.1)

WARNING: You are using pip version 21.3.1; however, version 22.0.3 is available.
You should consider upgrading via the '/opt/homebrew/opt/python@3.10/bin/python3.10 -m pip install --upgrade pip' command.
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x1055da5c0>: Failed to establish a new connection: [Errno 8] nodename nor servname provided, or not known')': /simple/pandas/

Collecting pandas
  Downloading pandas-1.4.1-cp310-cp310-macosx_11_0_arm64.whl (10.5 MB)
Requirement already satisfied: python-dateutil>=2.8.1 in /opt/homebrew/lib/python3.10/site-packages (from pandas) (2.8.2)
Requirement already satisfied: numpy>=1.21.0 in /opt/homebrew/lib/python3.10/site-packages (from pandas) (1.22.2)
Collecting pytz>=2020.1
  Downloading pytz-2021.3-py2.py3-none-any.whl (503 kB)
Requirement already satisfied: six>=1.5 in /opt/homebrew/lib/python3.10/site-packages (from python-dateutil>=2.8.1->pandas) (1.16.0)
Installing collected packages: pytz, pandas
Successfully installed pandas-1.4.1 pytz-2021.3

WARNING: You are using pip version 21.3.1; however, version 22.0.3 is available.
You should consider upgrading via the '/opt/homebrew/opt/python@3.10/bin/python3.10 -m pip install --upgrade pip' command.

Requirement already satisfied: jieba in /opt/homebrew/lib/python3.10/site-packages (0.42.1)

WARNING: You are using pip version 21.3.1; however, version 22.0.3 is available.
You should consider upgrading via the '/opt/homebrew/opt/python@3.10/bin/python3.10 -m pip install --upgrade pip' command.

Requirement already satisfied: requests in /opt/homebrew/lib/python3.10/site-packages (2.27.1)
Requirement already satisfied: charset-normalizer~=2.0.0 in /opt/homebrew/lib/python3.10/site-packages (from requests) (2.0.12)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in /opt/homebrew/lib/python3.10/site-packages (from requests) (1.26.8)
Requirement already satisfied: certifi>=2017.4.17 in /opt/homebrew/lib/python3.10/site-packages (from requests) (2021.10.8)
Requirement already satisfied: idna<4,>=2.5 in /opt/homebrew/lib/python3.10/site-packages (from requests) (3.3)

WARNING: You are using pip version 21.3.1; however, version 22.0.3 is available.
You should consider upgrading via the '/opt/homebrew/opt/python@3.10/bin/python3.10 -m pip install --upgrade pip' command.

Python学习笔记¶

第八章程序设计方法学¶

8.1 体育竞技分析¶

8.1.1 需求分析¶

8.1.2 自顶向下和自底向上¶

8.1.3 代码编写¶

8.2 Python程序设计思维¶

8.2.1 计算思维与程序设计¶

8.2.3 计算生态与Python语言¶

8.4.3 用户体验与软件产品¶

8.4.4 基本的程序设计模式¶

8.3 Python第三方库安装¶

8.3.1 看见更大的Python世界¶

8.3.2 第三方库的pip3安装方法¶

8.3.3 第三方库的集成安装方法¶

8.3.4 第三方库的文件安装方法¶

8.4 os库的使用¶

8.4.1 os库基本介绍¶

8.4.2 路径操作¶

8.4.3 进程管理¶

8.4.4 环境参数¶

8.5 第三方库自动安装脚本¶

Python学习笔记¶

第八章 程序设计方法学¶

8.1 体育竞技分析¶

8.1.1 需求分析¶

8.1.2 自顶向下和自底向上¶

8.1.3 代码编写¶

8.2 Python程序设计思维¶

8.2.1 计算思维与程序设计¶

8.2.3 计算生态与Python语言¶

8.4.3 用户体验与软件产品¶

8.4.4 基本的程序设计模式¶

8.3 Python第三方库安装¶

8.3.1 看见更大的Python世界¶

8.3.2 第三方库的pip3安装方法¶

8.3.3 第三方库的集成安装方法¶

8.3.4 第三方库的文件安装方法¶

8.4 os库的使用¶

8.4.1 os库基本介绍¶

8.4.2 路径操作¶

8.4.3 进程管理¶

8.4.4 环境参数¶

8.5 第三方库自动安装脚本¶

第八章程序设计方法学¶