分类： Python

import pandas as pd
import numpy as np
df = pd.DataFrame(np.random.rand(10, 5), columns=['A', 'B', 'C', 'D', 'E'])
df.plot.box(grid='True')

#绘制不同朝向的小乌龟和彩色圆点
from turtle import *
from random import *
import time
speed(9)
getscreen().colormode(255)

def randomcolor():
      red=randint(0,255)
      green=randint(0,255)
      blue=randint(0,255)
      color(red,green,blue)
def randomplace():
      x=randint(-120,120)
      y=randint(-150,150)
      penup()
      goto(x,y)
      pendown

def randomheading():
      setheading(randint(1,360))
def drawcircle():
      dot(randint(1,80))


shape("turtle")
randomcolor()
randomplace()
for i in range(30):
      randomcolor()
      randomplace()
      randomheading()
      stamp()

goto(-150,-200)
write('Waiting a moment...稍等片刻！',72,font="Arial")

time.sleep(3)
clear()
for i in range(30):
      randomcolor()
      randomplace()
      drawcircle()

sudo apt search tkinter
sudo apt install python3-tk –通过系统图形界面程序（tcl/tk），解决python3 tkinter模块的问题。

from math import sqrt
import handcalcs.render
%%render
#pqrameters
a=2
b=-5
c=3
%%render
x=(-b-sqrt(b^2-4*a*c))/(2*a)

网址： https://notebooks.azure.com/ 需要一个微软账号，登录使用。

#百度通用翻译API,不包含词典、tts语音合成等资源，如有相关需求请联系translate_api@baidu.com
# coding=utf-8

import http.client
import hashlib
import urllib
import random
import json

##APP ID：2020072400052563eight
##密钥：mZX6RZIZc5Y_zUW2XQbnine
##以上这两个参数，需要百度申请 ai.baidu.com

appid = ''  # 填写你的appidai.baidu.com
secretKey = ''  # 填写你的密钥

httpClient = None
myurl = '/api/trans/vip/translate'

fromLang = 'auto'   #原文语种
toLang = 'zh'   #译文语种
salt = random.randint(32768, 65536)
q= input("请输入要翻译的文本,例如：apple,I am a teacher")
sign = appid + q + str(salt) + secretKey
sign = hashlib.md5(sign.encode()).hexdigest()
myurl = myurl + '?appid=' + appid + '&q=' + urllib.parse.quote(q) + '&from=' + fromLang + '&to=' + toLang + '&salt=' + str(
salt) + '&sign=' + sign

try:
    httpClient = http.client.HTTPConnection('api.fanyi.baidu.com')
    httpClient.request('GET', myurl)

    # response是HTTPResponse对象
    response = httpClient.getresponse()
    result_all = response.read().decode("utf-8")
    result = json.loads(result_all)

    print (result)
        # result 输出结果如下：
        # {'from': 'en', 'to': 'zh', 'trans_result': [{'src': 'apple,I am a teacher', 'dst': '苹果，我是老师'}]}
        # 结果写入文件中
    with open('fy.json','a') as f:
        f.write(result["trans_result"][0]["src"]+"\n")
        f.write(result["trans_result"][0]["dst"])

except Exception as e:
    print (e)
finally:
    if httpClient:
        httpClient.close()

https://python3-cookbook.readthedocs.io/zh_CN/latest/

>>> import turtle as t
>>> for i in range(100):
...     t.color("red")
...     t.fd(i)
...     t.right(59)
...     t.dot(5)

1、采用国内源，加速下载模块的速度
2、常用pip源：
    -- 豆瓣：https://pypi.douban.com/simple
    -- 阿里：https://mirrors.aliyun.com/pypi/simple
3、加速安装的命令：
    -- >: pip install -i https://pypi.douban.com/simple 模块名