diff --git a/swake.py b/swake.py
new file mode 100644
index 0000000..ce7f3e8
--- /dev/null
+++ b/swake.py
@@ -0,0 +1,184 @@
+import sys
+import random
+import pygame
+from pygame.locals import *
+ 
+# 目标方块的颜色 红色
+redColor = pygame.Color(255, 0, 0)
+# 游戏界面的背景颜色 纯黑色
+blackColor = pygame.Color(0, 0, 0)
+# 贪吃蛇的颜色 白色
+whiteColor = pygame.Color(255, 255, 255)
+greenColor = pygame.Color(0, 255, 0)
+ 
+ 
+# 定义游戏结束的函数
+def gameOver():
+  pygame.quit()
+  sys.exit()
+ 
+ 
+# 定义main函数
+def main():
+  # 初始化pygame
+  pygame.init()
+  # 定义一个控制速度的函数
+  fpsClock = pygame.time.Clock()
+  # 创建显示层
+  playSurface = pygame.display.set_mode((640,480))  # 界面的大小
+  pygame.display.set_caption('贪吃蛇')
+  # 初始化蛇的位置
+  snake_position_p1=[100,100]
+  snake_position_p2=[500,100]
+  # 初始化蛇的长度
+  snake_body = [[100,100],[80,100],[60,100]]
+  snake_body_p2 = [[500,100],[520,100],[540,100]]
+  # 初始化目标方块的位置
+  target_position = [300,300]
+ 
+  # 目标方块的状态
+  target_flag = 1
+ 
+  # 初始化一个方向
+  direction = 'right'
+  direction_p2 = 'left'
+  # 定义蛇的方向变量
+  changeDirection = direction
+  changeDirection_p2 = direction_p2
+  while True:
+    # pygame的交互模块和事件队列
+    for event in pygame.event.get():
+      # 是否推出
+      if event.type == QUIT:
+        pygame.quit()
+        sys.exit()
+      # 判断键盘事件
+      elif event.type == KEYDOWN:
+        if event.key == K_RIGHT:
+          changeDirection = 'right'
+        if event.key == K_LEFT:
+          changeDirection = 'left'
+        if event.key == K_UP:
+          changeDirection = 'up'
+        if event.key == K_DOWN:
+          changeDirection = 'down'
+        if event.key == K_w:
+          changeDirection_p2 = 'up'
+        if event.key == K_s:
+          changeDirection_p2 = 'down'
+        if event.key == K_a:
+          changeDirection_p2 = 'left'
+        if event.key == K_d:
+          changeDirection_p2 = 'right'
+        if event.key == K_SPACE:
+          pygame.event.post(pygame.event.Event(QUIT))
+ 
+    # 根据键盘反应确定方向
+    if changeDirection == 'left' and not direction == 'right':
+      direction = changeDirection
+ 
+    if changeDirection == 'right' and not direction == 'left':
+      direction = changeDirection
+ 
+    if changeDirection == 'up' and not direction == 'down':
+      direction = changeDirection
+ 
+    if changeDirection == 'down' and not direction == 'up':
+      direction = changeDirection
+
+      
+    if changeDirection_p2 == 'left' and not direction_p2 == 'right':
+      direction_p2 = changeDirection_p2
+ 
+    if changeDirection_p2 == 'right' and not direction_p2 == 'left':
+      direction_p2 = changeDirection_p2
+ 
+    if changeDirection_p2 == 'up' and not direction_p2 == 'down':
+      direction_p2 = changeDirection_p2
+ 
+    if changeDirection_p2 == 'down' and not direction_p2 == 'up':
+      direction_p2 = changeDirection_p2
+ 
+ 
+    # 根据方向移动蛇头的坐标
+    if direction == 'right':
+      snake_position_p1[0] += 20
+ 
+    if direction == 'left':
+      snake_position_p1[0] -= 20
+ 
+    if direction == 'up':
+      snake_position_p1[1] -= 20
+ 
+    if direction == 'down':
+      snake_position_p1[1] += 20
+
+
+    if direction_p2 == 'right':
+      snake_position_p2[0] += 20
+ 
+    if direction_p2 == 'left':
+      snake_position_p2[0] -= 20
+ 
+    if direction_p2 == 'up':
+      snake_position_p2[1] -= 20
+ 
+    if direction_p2 == 'down':
+      snake_position_p2[1] += 20
+ 
+    # 蛇与自身的碰撞检测
+    #for body in snake_body:
+    #  if snake_position_p1[0] == body[0] and snake_position_p1[1] == body[1]:
+    #    gameOver()
+ 
+    # 蛇移动
+    snake_body.insert(0,list(snake_position_p1))
+    snake_body_p2.insert(0,list(snake_position_p2))
+ 
+ 
+    if snake_position_p1[0] == target_position[0] and snake_position_p1[1] == target_position[1]:
+      target_flag = 0
+    snake_body.pop()
+    if snake_position_p2[0] == target_position[0] and snake_position_p2[1] == target_position[1]:
+      target_flag = 0
+    snake_body_p2.pop()
+    #else:
+      # 如果没吃到，蛇尾弹出栈
+      #snake_body.pop()
+    
+    # 如果吃掉目标方块，重新生成一个目标方块
+    if target_flag == 0:
+      x = random.randrange(1,32)
+      y = random.randrange(1,24)
+      # 20*20的像素为一个小矩形
+      target_position = [int(x*20),int(y*20)]
+      target_flag = 1
+ 
+    # 绘制显示层
+    playSurface.fill(blackColor)
+ 
+    # 绘制蛇
+    for position in snake_body:
+      pygame.draw.rect(playSurface, redColor, Rect(position[0],position[1],20,20))
+    for position in snake_body_p2:
+      pygame.draw.rect(playSurface, greenColor, Rect(position[0],position[1],20,20))
+    # 画目标方块
+    pygame.draw.rect(playSurface, whiteColor, Rect(target_position[0], target_position[1], 20, 20))
+ 
+    pygame.display.flip()
+ 
+    # 判断死亡
+    if snake_position_p1[0] > 620 or snake_position_p1[1] < 0:
+      gameOver()
+    elif snake_position_p1[1] > 460 or snake_position_p1[1] < 0:
+      gameOver()
+    if snake_position_p2[0] > 620 or snake_position_p2[1] < 0:
+      gameOver()
+    elif snake_position_p2[1] > 460 or snake_position_p2[1] < 0:
+      gameOver()
+ 
+    # 控制游戏的速度
+    fpsClock.tick(5)
+ 
+if __name__ == '__main__':
+  main()
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