python3下pygame如何实现显示中文

import pygame
from pygame.locals import *
def main():
  pygame.init()
  screen = pygame.display.set_mode((1000, 450)) #窗口的大小
  pygame.display.set_caption('pygame程序的界面的中文设置') #窗口标题，中文不需要特别的设置
  background = pygame.Surface(screen.get_size())
  background = background.convert()
  background.fill((250, 250, 250))
  #font = pygame.font.Font(None, 60) #原始代码，使用默认字体，不能显示中文
  font = pygame.font.Font('/home/xgj/Desktop/simsun/simsun.ttf', 60) #显示中文的设置和字体，及路径
  text = font.render("Hello 我爱你", 1, (10, 10, 10)) 
  textpos = text.get_rect()
  textpos.center = background.get_rect().center
  background.blit(text, textpos)
  screen.blit(background, (0, 0))
  pygame.display.flip()
  while 1:
    for event in pygame.event.get():
      if event.type == QUIT:
        return
        screen.blit(background, (0, 0))
        pygame.display.flip()

if __name__ == '__main__': 
  main()