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‎python_base/.ipynb_checkpoints/python2__关键字，容器及访问，循环-checkpoint.ipynb‎

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‎python_base/.ipynb_checkpoints/python4__面向对象-checkpoint.ipynb‎

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‎python_base/.ipynb_checkpoints/python7__Numpy高效数据处理-checkpoint.ipynb‎

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‎python_base/.ipynb_checkpoints/python8__Padas表格处理-checkpoint.ipynb‎

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‎python_base/ibm.txt‎

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‎python_base/python2__关键字，容器及访问，循环.ipynb‎

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"fibonacci(10)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 4,
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"metadata": {},
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"outputs": [
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{
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"name": "stdout",
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"output_type": "stream",
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"text": [
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"total 48.84060068717216\n"
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]
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},
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{
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"data": {
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"text/plain": [
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"['2/1',\n",
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" '3/2',\n",
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" '5/3',\n",
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" '8/5',\n",
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" '13/8',\n",
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" '21/13',\n",
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" '34/21',\n",
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" '55/34',\n",
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" '89/55',\n",
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" '144/89',\n",
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" '233/144',\n",
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" '377/233',\n",
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" '610/377',\n",
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" '987/610',\n",
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" '1597/987',\n",
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" '2584/1597',\n",
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" '4181/2584',\n",
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" '6765/4181',\n",
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" '10946/6765',\n",
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" '17711/10946',\n",
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" '28657/17711',\n",
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" '46368/28657',\n",
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" '75025/46368',\n",
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" '121393/75025',\n",
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" '196418/121393',\n",
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" '317811/196418',\n",
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" '514229/317811',\n",
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" '832040/514229',\n",
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" '1346269/832040',\n",
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" '2178309/1346269']"
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]
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},
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"execution_count": 4,
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"metadata": {},
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"output_type": "execute_result"
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}
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],
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"source": [
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"def fibonacci(n):\n",
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" fib=[]\n",
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" fm=1 # 分母\n",
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" fz=2 # 分子\n",
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" i=2\n",
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" total=0\n",
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" for i in range(1,n+1):\n",
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" total += fz/fm\n",
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" fib.append('%d/%d'%(fz,fm))\n",
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" fm,fz=fz,fm+fz\n",
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" i+=1\n",
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" print('total',total)\n",
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" return fib\n",
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"\n",
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"fibonacci(30)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": 92,

‎python_base/python4__面向对象.ipynb‎

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},
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{
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"cell_type": "code",
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"execution_count": null,
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"execution_count": 11,
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"metadata": {},
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"outputs": [],
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"source": []
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"source": [
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"from PIL import Image\n",
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"from PIL import ImageDraw\n",
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"from PIL import ImageFont\n",
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"import random\n",
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"\n",
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"def getRandomColor():\n",
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" '''获取一个随机颜色(r,g,b)格式的'''\n",
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" c1 = random.randint(0,255)\n",
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" c2 = random.randint(0,255)\n",
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" c3 = random.randint(0,255)\n",
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" return (c1,c2,c3)\n",
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"\n",
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"\n",
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"def getRandomStr():\n",
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" '''获取一个随机字符串，每个字符的颜色也是随机的'''\n",
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" random_num = str(random.randint(0, 9))\n",
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" random_low_alpha = chr(random.randint(97, 122))\n",
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" random_upper_alpha = chr(random.randint(65, 90))\n",
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" random_char = random.choice([random_num, random_low_alpha, random_upper_alpha])\n",
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"\n",
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" return random_char\n",
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"\n",
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"\n",
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"# 获取一个Image对象，参数分别是RGB模式。宽150，高30，随机颜色\n",
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"image = Image.new('RGB',(150,30),getRandomColor())\n",
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"\n",
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"# 获取一个画笔对象，将图片对象传过去\n",
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"draw = ImageDraw.Draw(image)\n",
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"\n",
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"# 获取一个font字体对象参数是ttf的字体文件的目录，以及字体的大小\n",
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"font=ImageFont.load_default().font\n",
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"\n",
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"\n",
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"for i in range(5):\n",
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" # 循环5次，获取5个随机字符串\n",
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" random_char = getRandomStr()\n",
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"\n",
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" # 在图片上一次写入得到的随机字符串,参数是：定位，字符串，颜色，字体\n",
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" draw.text((10+i*30, 0),random_char , getRandomColor(), font=font)\n",
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"\n",
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"\n",
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"# 噪点噪线\n",
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"width=150\n",
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"height=30\n",
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"# 划线\n",
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"for i in range(5):\n",
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" x1=random.randint(0,width)\n",
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" x2=random.randint(0,width)\n",
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" y1=random.randint(0,height)\n",
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" y2=random.randint(0,height)\n",
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" draw.line((x1,y1,x2,y2),fill=getRandomColor())\n",
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"\n",
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"# 画点\n",
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"for i in range(30):\n",
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" draw.point([random.randint(0, width), random.randint(0, height)], fill=getRandomColor())\n",
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" x = random.randint(0, width)\n",
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" y = random.randint(0, height)\n",
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" draw.arc((x, y, x + 4, y + 4), 0, 90, fill=getRandomColor())\n",
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"\n",
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"# 保存到硬盘，名为test.png格式为png的图片\n",
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"image.save(open('./test.png', 'wb'), 'png')\n",
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"\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"execution_count": 6,
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"metadata": {},
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"outputs": [],
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"source": []
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"source": [
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"import random\n",
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"import string\n",
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"import sys\n",
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"import math\n",
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"from PIL import Image,ImageDraw,ImageFont,ImageFilter\n",
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"\n",
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"# 生成几位数的验证码\n",
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"number = 4\n",
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"#生成验证码图片的高度和宽度\n",
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"size = (129,53)\n",
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"#背景颜色，默认为白色\n",
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"bgcolor = (random.randint(0,255),random.randint(0,255),random.randint(0,255))\n",
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"#字体颜色，默认为蓝色\n",
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"fontcolor = (0,0,0)\n",
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"#干扰线颜色。默认为红色\n",
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"linecolor = (255,0,0)\n",
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"#加入干扰线条数的上下限\n",
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"line_number = (1,5)\n",
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"\n",
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"#随机生成一个字符串\n",
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"source = ['0','1','2','3','4','5','6','7','8','9','A', 'B', 'C', 'D', 'E', 'F', 'G', 'H','I','J', 'K','L', 'M', 'N','O','P','Q','R','S', 'T', 'U', 'V', 'W', 'Z','X', 'Y']\n",
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"gene_text = ''.join(random.sample(source,number))#number是生成验证码的位数\n",
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"\n",
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"#绘制干扰线\n",
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"width,height = size\n",
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"begin = (0, random.randint(0, height))\n",
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"end = (74, random.randint(0, height))\n",
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"image = Image.new('RGBA',(width,height),bgcolor) #创建图片\n",
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"draw = ImageDraw.Draw(image) #创建画笔\n",
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"gene_line = draw.line([begin, end], fill = linecolor,width=3)\n",
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"\n",
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"#生成验证码\n",
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"width,height = size #宽和高\n",
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"font = ImageFont.load_default().font #验证码默认系统字体\n",
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"# font = ImageFont.truetype(\"C:/Windows/Fonts/micross.ttf\", 40)\n",
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"text = gene_text\n",
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"font_width, font_height = font.getsize(text)\n",
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"draw.text(((width - font_width) / number, (height - font_height) / number),text,font= font,fill=fontcolor) #填充字符串\n",
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"image = image.transform((width+30,height+10), Image.AFFINE, (1,-0.3,0,-0.1,1,0),Image.BILINEAR) #创建扭曲\n",
954+
"image = image.filter(ImageFilter.EDGE_ENHANCE_MORE) #滤镜，边界加强\n",
955+
"# image.save('yanzhengma.png') #保存验证码图片\n",
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"image.show()"
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]
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},
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{
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"cell_type": "code",

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