pip install pillow
from PIL import Image from PIL import ImageDraw from PIL import ImageFont import random class ValidCodeImg: def __init__(self, width=175, height=40, code_count=6, font_size=28, point_count=20, line_count=3, img_format='png'): ''' 能夠生成一個通過降噪後的隨機驗證碼的圖片 :param width: 圖片寬度 單位px :param height: 圖片高度 單位px :param code_count: 驗證碼個數 :param font_size: 字體大小 :param point_count: 噪點個數 :param line_count: 劃線個數 :param img_format: 圖片格式 :return 生成的圖片的bytes類型的data ''' self.width = width self.height = height self.code_count = code_count self.font_size = font_size self.point_count = point_count self.line_count = line_count self.img_format = img_format @staticmethod def get_random_color(): '''獲取一個隨機顏色(r,g,b)格式的''' c1 = random.randint(0, 255) c2 = random.randint(0, 255) c3 = random.randint(0, 255) return (c1, c2, c3) @staticmethod def get_random_string(): '''獲取一個隨機字符串,每一個字符的顏色也是隨機的''' random_num = str(random.randint(0, 9)) random_low_alpha = chr(random.randint(97, 122)) random_upper_alpha = chr(random.randint(65, 90)) random_char = random.choice([random_num, random_low_alpha, random_upper_alpha]) return random_char def get_valid_code_img(self): # 獲取一個Image對象,參數分別是RGB模式。寬150,高30,隨機顏色 image = Image.new('RGB', (self.width, self.height), self.get_random_color()) # 獲取一個畫筆對象,將圖片對象傳過去 draw = ImageDraw.Draw(image) # 獲取一個font字體對象參數是ttf的字體文件的目錄,以及字體的大小 font = ImageFont.truetype("kumo.ttf", size=self.font_size) temp = [] for i in range(self.code_count): # 循環5次,獲取5個隨機字符串 random_char = self.get_random_string() # 在圖片上一次寫入獲得的隨機字符串,參數是:定位,字符串,顏色,字體 draw.text((4 + i * 30, 10), random_char, self.get_random_color(), font=font) # 保存隨機字符,以供驗證用戶輸入的驗證碼是否正確時使用 temp.append(random_char) valid_str = "".join(temp) # 噪點噪線 # 劃線 for i in range(self.line_count): x1 = random.randint(0, self.width) x2 = random.randint(0, self.width) y1 = random.randint(0, self.height) y2 = random.randint(0, self.height) draw.line((x1, y1, x2, y2), fill=self.get_random_color()) # 畫點 for i in range(self.point_count): draw.point([random.randint(0, self.width), random.randint(0, self.height)], fill=self.get_random_color()) x = random.randint(0, self.width) y = random.randint(0, self.height) draw.arc((x, y, x + 4, y + 4), 0, 90, fill=self.get_random_color()) # 在內存生成圖片 from io import BytesIO f = BytesIO() image.save(f, self.img_format) data = f.getvalue() f.close() return data, valid_str def create_img(self): data, valid_str = self.get_valid_code_img() f = open('test.png', 'wb') f.write(data) f.close() return valid_str if __name__ == '__main__': img = ValidCodeImg() strs = img.create_img() print(strs)
封裝好了,直接拿去用,另外附字體
kumo.ttf
百度下下來,而後放在文件目錄同級目錄下便可app