0进宝、將你的 QQ 頭像（或者微博頭像）右上角加上紅色的數(shù)字永丝，類似于微信未讀信息數(shù)量那種提示效果。 類似于圖中效果
# coding=utf-8
from PIL import Image, ImageDraw, ImageFont # Pillow
# 打開原圖片
openImg = Image.open('./etc/ac345982b2b7d0a2e416b6c2caef76094a369a96.jpg')
size = (0, 0, 125, 125)
# 新圖片
newImg = Image.new('RGB', openImg.size, (0, 0, 0))
draw = ImageDraw.Draw(newImg)
# 粘貼
newImg.paste(openImg.crop(size), # 復制
size) # 大小
draw.text((90, 2), # 坐標
'14', # 字符串
font = ImageFont.truetype('./etc/arial.ttf', 24), # 字體
fill = (255, 0, 0)) # 顏色
newImg.save('./etc/code1.png', 'png')
原圖片
新圖片
參考：
http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/00140767171357714f87a053a824ffd811d98a83b58ec13000
http://liam0205.me/2015/04/22/pil-tutorial-basic-usage/
1屈梁、做為 Apple Store App 獨立開發(fā)者，你要搞限時促銷僚稿，為你的應(yīng)用生成激活碼（或者優(yōu)惠券）姊氓，使用 Python 如何生成 200 個激活碼（或者優(yōu)惠券）丐怯？
# coding=utf-8
import random
from PIL import Image, ImageDraw, ImageFont # Pillow
# 字符串相關(guān)
_String = 'Q W E R T Y U I O P A S D F G H J K L Z X C V B N M q w e r t y u i o p a s d f g h j k l z x c v b n m 1 2 3 4 5 6 7 8 9 0'.split(' ')
_Length = len(_String) - 1
# 生成隨機字符串（優(yōu)惠券id）
# @param {number} length: 字符串長度
# @return {string}: 返回字符串
def randomString(length = 0):
s = ''
i = 0
while i < length:
s += _String[random.randint(0, _Length)]
i += 1
return s
# 生成優(yōu)惠券
# @param {string} stringID: 優(yōu)惠券id
_Font = ImageFont.truetype('./etc/arial.ttf', 24)
def youHuiQuan(stringID):
img = Image.new('RGB', (200, 40), (0, 0, 0))
draw = ImageDraw.Draw(img)
draw.text((5, 8), stringID, font = _Font, fill = (255, 255, 255))
img.save('./result/' + stringID + '.jpg', 'jpeg')
# 初始化
def init():
i = 0
j = 5
while i < j:
t = randomString(10)
youHuiQuan(t)
i += 1
init()
2、將 1 題生成的激活碼（或者優(yōu)惠券）保存到 MySQL關(guān)系型數(shù)據(jù)庫中翔横。
# coding=utf-8
import random
import pymysql
from PIL import Image, ImageDraw, ImageFont # Pillow
# 字符串相關(guān)
_String = 'Q W E R T Y U I O P A S D F G H J K L Z X C V B N M q w e r t y u i o p a s d f g h j k l z x c v b n m 1 2 3 4 5 6 7 8 9 0'.split(' ')
_Length = len(_String) - 1
# 生成隨機字符串（優(yōu)惠券id）
# @param {number} length: 字符串長度
# @return {string}: 返回字符串
def randomString(length = 0):
s = ''
i = 0
while i < length:
s += _String[random.randint(0, _Length)]
i += 1
return s
# 生成優(yōu)惠券
# @param {string} stringID: 優(yōu)惠券id
_Font = ImageFont.truetype('./etc/arial.ttf', 24)
def youHuiQuan(stringID):
img = Image.new('RGB', (200, 40), (0, 0, 0))
draw = ImageDraw.Draw(img)
draw.text((5, 8), stringID, font = _Font, fill = (255, 255, 255))
img.save('./result/' + stringID + '.jpg', 'jpeg')
# 存入數(shù)據(jù)庫
# @param db: 數(shù)據(jù)庫
# @param cursor: 數(shù)據(jù)庫游標
# @param {string} rs: 隨機字符串
# @return {number}: 返回數(shù)據(jù)庫是否有該字符串的結(jié)果
def sql(db, cursor, rs):
# 判斷數(shù)據(jù)庫是否有該字符串
sql1 = '''SELECT str FROM random
WHERE str = '%s' ''' % (rs)
r1 = cursor.execute(sql1)
# 如果r1 = 0读跷，表示該字符串沒有生成過
if r1 == 0:
# 將字符串插入到數(shù)據(jù)庫中
sql2 = '''INSERT INTO random
(str)
VALUES ('%s')''' % (rs)
r2 = cursor.execute(sql2)
db.commit()
return r1
# 初始化
'''
CREATE TABLE if not exists `random` (
`Id` int(11) NOT NULL AUTO_INCREMENT,
`str` varchar(255) DEFAULT NULL,
PRIMARY KEY (`Id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
'''
def init():
i = 0
j = 4
db = pymysql.connect('localhost', 'lianxi', 'lianxi', 'lianxi')
cursor = db.cursor()
# 循環(huán)
while i < j:
# 生成隨機字符串并將結(jié)果存入到數(shù)據(jù)庫
t = randomString(10)
n = sql(db, cursor, t)
# 返回0表示該隨機字符串沒有生成過，生成圖片并使i+1
if n == 0:
youHuiQuan(t)
i += 1
db.close()
init()
3禾唁、任一個英文的純文本文件效览，統(tǒng)計其中的單詞出現(xiàn)的個數(shù)。
# coding=utf8
import re
# 打開文件并讀取文本
file = open('./etc/t4.txt', 'r')
text = file.read()
file.close()
# 正則
regexp = re.compile(r'''[\s # 匹配空格
\n # 匹配換行
.,!():'"?<> # 匹配特殊符號
]+ # 匹配>=1個符合規(guī)則''', re.X)
newText = re.split(regexp, text)
# 統(tǒng)計每個單詞出現(xiàn)的個數(shù)
# -1是因為數(shù)組的最后一位是''
wordLength = {}
for index in range(len(newText) - 1):
if newText[index] in wordLength:
wordLength[newText[index]] += 1
else:
wordLength[newText[index]] = 1
# 輸出結(jié)果
print('A total of ' + str(len(newText) - 1) + ' words appeared.\n')
for key in wordLength:
print(key + ':' + str(wordLength[key]))
4蟀俊、用 Python 寫一個爬圖片的程序钦铺，爬這個鏈接里的妹子圖片 :)
# coding=utf8
import re
import urllib
import urllib2
_TieBaURL = 'http://tieba.baidu.com/p/2166231880'
# get請求
def get(url):
request = urllib2.Request(url)
response = urllib2.urlopen(request)
return response.read()
# 獲取圖片字符串
def getImgUrl(html):
h = re.compile(r'http://([^\s]+)\.(png|jpg)', re.I)
return h.findall(html)
# 下載
def download(urls):
txt = ''
for index in range(len(urls)):
t = urls[index][0] + '.' + urls[index][1] # 文件地址
u = 'http://' + t # http + 文件地址
urllib.urlretrieve(u, './image/' + str(index) + '.' + urls[index][1]) # 下載并保存
txt += u + '\n'
# 把地址存到文檔里
file = open('./image/url.txt', 'w+')
file.write(txt)
file.close()
# 初始化
def init():
html = get(_TieBaURL) # 請求
urls = getImgUrl(html) # 分解獲得地址
download(urls) # 下載
init()
