python 11121211

概述二维码importqrcodefromPILimportImageimportos,sysdefgen_qrcode(string,path,logo=""):"""生成中间带logo的二维码需要安装qrcode,PIL库@参数string:二维码字符串@参数path:生成的二维码保存路径@参数logo:logo文件路

二维码

import qrcodefrom PIL import Imageimport os, sysdef gen_qrcode(string, path, logo=""):    """    生成中间带logo的二维码    需要安装qrcode, PIL库    @参数 string: 二维码字符串    @参数 path: 生成的二维码保存路径    @参数 logo: logo文件路径    @return: None    """    qr = qrcode.QRCode(        version=2,        error_correction=qrcode.constants.ERROR_CORRECT_H,        Box_size=8,        border=1    )    qr.add_data(string)    qr.make(fit=True)    img = qr.make_image()    img = img.convert("RGBA")    if logo and os.path.exists(logo):        try:            icon = Image.open(logo)            img_w, img_h = img.size        except Exception as e:            print(e)             sys.exit(1)        factor = 4        size_w = int(img_w / factor)        size_h = int(img_h / factor)        icon_w, icon_h = icon.size        if icon_w > size_w:            icon_w = size_w        if icon_h > size_h:            icon_h = size_h        icon = icon.resize((icon_w, icon_h), Image.ANTIAliAS)        w = int((img_w - icon_w) / 2)        h = int((img_h - icon_h) / 2)        icon = icon.convert("RGBA")        img.paste(icon, (w, h), icon)    img.save(path)    # 调用系统命令打开图片    # xdg - open(opens a file or URL in the user's preferred application)    os.system('xdg-open %s' % path)if __name__ == "__main__":    info = "http://www.fjut.edu.cn"    pic_path = "qr.png"    logo_path = "logo.png"    gen_qrcode(info, pic_path,logo_path )

验证码

import random, string, sys, mathfrom PIL import Image,ImageDraw, ImageFont,ImageFilterFont_path='C:\windows\Fonts\arial.ttf'number=4size=(80,90)bgcolor=(255,255,255)Fontcolor=(0,0,255)linecolor=(255,0,0)draw_line=Trueline_number=(1,5)def gene_text():    source=List(string.ascii_letters)    for index in range(0,10):        source.append(str(index))    return "".join(random.sample(source,4))def gene_line(draw,wIDth,height):    begin=(random.randint(0,wIDth),random.randint(0,height))    end=(random.randint(0,wIDth),random.randint(0,height))    draw.line([begin,end],fill=linecolor)def gene_code():    wIDth,height=size    image=Image.new('RGBA',(wIDth,height),bgcolor)    Font=ImageFont.truetype(Font_path,25)    draw=ImageDraw.Draw(image)    text=gene_text()    Font_wIDth, Font_height=Font.getsize(text)    draw.text(((wIDth-Font_wIDth)/number, (height-Font_height)/number),text,Font=Font,fill=Fontcolor)    if draw_line:        gene_line(draw,wIDth,height)    image=image.transform((wIDth+20,height+10), Image.AFFINE,(1,-0.3,0,-0.1,1,0),Image.BIliNEAR)    image=image.filter(ImageFilter.EDGE_ENHANCE_MORE)    image.save('1.png')if __name__=="__main__":    gene_code()

聊天

#服务器import socketimport threadingimport timedef onlink(sock, addr, user):    user = 'user' + str(user)    print('来自' + str(addr) + ' as ' + user)    sock.send(b'welcome')    while True:        data = sock.recv(1024).decode('utf-8')        time.sleep(1)        if not data or data == 'exit':            break        print(user + ' : ' + data)        rtn = input('回复' + user + ' : ')        sock.send(rtn.encode('utf-8'))    sock.close()    print('close %s:%s' % addr)    print(user + ' 已断开')s = socket.socket(socket.AF_INET, socket.soCK_STREAM)s.bind(('127.0.0.1', 8888))s.Listen(5)print('等待客户端连接.....')user = 0while True:    sock, addr = s.accept()    user += 1    t = threading.Thread(target=onlink, args=(sock, addr, user))t.start()#客户端import sockets = socket.socket(socket.AF_INET, socket.soCK_STREAM)s.connect(('127.0.0.1', 8888))data = s.recv(1024).decode('utf-8')print('服务器:' + data)while True:    data = input('请输入:')    if not data or data == 'exit':        break    s.send(data.encode('utf-8'))    print('服务器:' + s.recv(1024).decode('utf-8'))print('与服务器断开连接')s.close()

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