# 安装

pip3 install pillow

from PIL import Image

img = Image.new(mode="RGB", size=(120, 30), color=(125, 255, 255))

# 保存图片到本地

with open("code.png",'wb') as f:

img.save(f,format="png")

from PIL import Image

from PIL import ImageDraw

img = Image.new(mode="RGB", size=(120, 30), color=(255,255,255))

draw = ImageDraw.Draw(img, mode="RGB")

from PIL import Image

from PIL import ImageDraw

img = Image.new(mode="RGB", size=(120, 30), color=(255,255,255))

draw = ImageDraw.Draw(img, mode="RGB")

# 第一个参数：表示坐标

# 第二个参数：表示颜色

draw.point([100,20], fill="red")

draw.point([50,10], fill=(255, 135, 255))

with open("code.png",'wb') as f:

img.save(f,format="png")

from PIL import Image

from PIL import ImageDraw

img = Image.new(mode="RGB", size=(120, 30), color=(255,255,255))

draw = ImageDraw.Draw(img, mode="RGB")

# 第一个参数：表示起始坐标和结束坐标

# 第二个参数：表示颜色

draw.line((10, 10, 10, 30), fill="red")

draw.line((10, 10, 30, 10), fill=(255, 135, 255))

with open("code.png",'wb') as f:

img.save(f,format="png")

from PIL import Image

from PIL import ImageDraw

img = Image.new(mode="RGB", size=(150, 150), color=(255,255,255))

draw = ImageDraw.Draw(img, mode="RGB")

# 第一个参数：表示起始坐标和结束坐标(圆要画在中间)

# 第二个参数：表示开始角度

# 第三个参数：表示结束角度

# 第四个参数：表示颜色

draw.arc((50, 50, 100, 100), 0, 360, fill="red")

with open("code.png",'wb') as f:

img.save(f,format="png")

from PIL import Image

from PIL import ImageDraw

img = Image.new(mode="RGB", size=(120, 30), color=(255,255,255))

draw = ImageDraw.Draw(img, mode="RGB")

# 第一个参数：表示起始坐标

# 第二个参数：表示写入内容

# 第三个参数：表示颜色

draw.text([20, 10], "python", fill="red")

with open("code.png",'wb') as f:

img.save(f,format="png")

from PIL import Image, ImageDraw, ImageFont

img = Image.new(mode="RGB", size=(120, 30), color=(255,255,255))

draw = ImageDraw.Draw(img, mode="RGB")

# 第一个参数：表示字体路径

# 第二个参数：表示字体大小

font = ImageFont.truetype("kumo.ttf", 25)

# 第一个参数：表示起始坐标

# 第二个参数：表示写入内容

# 第三个参数：表示颜色

# 第四个参数：表示字体

draw.text([30, 0], "python", fill="red", font=font)

with open("code.png",'wb') as f:

img.save(f,format="png")

import random

from io import BytesIO

from PIL import Image, ImageDraw, ImageFont

def check_code(width=120, height=30, char_length=5, font_file='kumo.ttf', font_size=28):

    f = BytesIO()

    img = Image.new(mode='RGB', size=(width, height),

                    color=(random.randint(50, 250), random.randint(50, 255), random.randint(50, 255)))

    draw = ImageDraw.Draw(img, mode='RGB')

    char_list = []

    # 画字

    for i in range(char_length):

        char = random.choice([chr(random.randint(65, 90)), str(random.randint(1, 9)), chr(random.randint(97, 122)), ])

        font = ImageFont.truetype("blog/static/fonts/"+font_file, font_size)

        draw.text([i * 24, 0], char, (random.randint(200, 255), random.randint(0, 50), random.randint(0, 50)),

                  font=font)

        char_list.append(char)

    def rndColor():

        """

        生成随机颜色

        :return:

        """

        return (random.randint(0, 255), random.randint(10, 255), random.randint(64, 255))

    # 写干扰点

    for i in range(40):

        draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())

    # 写干扰圆圈

    for i in range(40):

        draw.point([random.randint(0, width), random.randint(0, height)], fill=rndColor())

        x = random.randint(0, width)

        y = random.randint(0, height)

        draw.arc((x, y, x + 4, y + 4), 0, 90, fill=rndColor())

    # 画干扰线

    for i in range(5):

        x1 = random.randint(0, width)

        y1 = random.randint(0, height)

        x2 = random.randint(0, width)

        y2 = random.randint(0, height)

        draw.line((x1, y1, x2, y2), fill=rndColor())

    img.save(f, "png")

    data = f.getvalue()

    s_code = ''.join(char_list)

    return data,s_code

def get_valid_img(request):

    '''

    登录和注册的验证码

    :param request:

    :return:

    '''

    data,s_code = check_code()

    request.session["valid_code"] = s_code

    return HttpResponse(data)