python如何实现内容写在图片上

# -*- coding: utf-8 -*-# Created on 2018/3/20import base64import randomimport osimport sysimport timefrom PIL import Image, ImageFont, ImageDrawreload(sys)sys.setdefaultencoding('utf8')BASE_PATH = "E://MyWork//qingwa//5//" # 底图所在路径TMP_PATH = "E://MyWork//qingwa//5//tmp//" # 生成图片缓存路径font_size = 35# 216 194 119class MyCar: def __init__(self, name):  self.name = name  self.name_append = "的气质适合开"  if not os.path.exists(TMP_PATH):   os.mkdir(TMP_PATH)  self.end_path = TMP_PATH + str(int(time.time())) + str(random.randint(100, 999)) + ".png" # 图片处理完之后保存的文件名  self.data = "" # base64数据初始化  self.pic_handle()  self.base_64() def base_64(self):  """  将图片读成base64的格式，返回给移动端渲染  :return:  """  res = open(self.end_path, 'rb')  base64_data = base64.b64encode(res.read())  res.close()  d = {   'image': 'data:image/jpg;base64,' + base64_data  }  self.data = d def pic_handle(self):  # 底图路径  img_path = BASE_PATH + str(random.randint(1, 8)) + ".jpg"  # 底图的操作对象  font_img = Image.open(img_path).convert("RGBA")  # 即将在该底图上写字  draw = ImageDraw.Draw(font_img)  # 画笔  name_font = ImageFont.truetype("wryh.TTF", size=35)  # 即将写的字  name = self.name + self.name_append  # 底图的宽高  w, h = font_img.size  # 写在底图上的区域，计算字符串的长度，让它宽度居中（高度居中 同理）  # name_loaction分别指宽高，图片左上角为(0,0)坐标  # 写字，fill为字体颜色，RGB值  # try except 避免字符串编码的问题(unicode编码 再次转换会报错)  try:   name_location = (((w - len(unicode(name, "UTF-8")) * font_size) / 2), 76)   draw.text(name_location, unicode(name, "UTF-8"), fill=(216, 194, 119), font=name_font)  except BaseException as e:   print e.message   name_location = (((w - len(name) * font_size) / 2), 76)   draw.text(name_location, name, fill=(216, 194, 119), font=name_font)  print self.end_path  # 保存处理好的图片  font_img.save(self.end_path)  # 显示图片  font_img.show() def end_data(self):  return self.dataif __name__ == '__main__': my_car = MyCar("测试") return_data = my_car.end_data() print type(return_data)