save project

snake.py

+
 import pygame
 import pygame
 from pygame import locals
 from pygame import locals
-import random
+import  random
 
 
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 pygame.init()
@@ -20,8 +21,9 @@ down = pygame.image.load('down.png')        # 头 朝下
 
 
 x, y = 240, 120
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
-apple_x=360
+apple_x = 360
 apple_y=300
 apple_y=300
+
 setheading = "right"
 setheading = "right"
 snake_head = right
 snake_head = right
 
 
@@ -31,32 +33,33 @@ while True:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
         if event.type == locals.KEYDOWN:
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_RIGHT and setheading = "left":
+            if event.key == locals.K_RIGHT and setheading != "left":
                 setheading = 'right'
                 setheading = 'right'
                 snake_head = right
                 snake_head = right
-            if event.key == locals.K_LEFT and setheading = "right":
+            if event.key == locals.K_LEFT and setheading != "right":
                 setheading = 'left'
                 setheading = 'left'
                 snake_head = left
                 snake_head = left
-            if event.key == locals.K_UP and setheading = "down":
+            if event.key == locals.K_UP and setheading != "down":
                 setheading = 'up'
                 setheading = 'up'
                 snake_head = up
                 snake_head = up
-            if event.key == locals.K_DOWN and setheading = "up":
+            if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 setheading = 'down'
                 snake_head = down
                 snake_head = down
 
 
     # 设置贪吃蛇的头部坐标
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
     if setheading == "right":
-            x += 30
-        elif setheading == "left":
-            x -= 30
-        elif setheading == "up":
-            y -= 30
-        else:
-            y += 30
+        x += 30
+    elif setheading == "left":
+        x -= 30
+    elif setheading == "up":
+        y -= 30
+    else:
+        y += 30
     position.append((x, y))
     position.append((x, y))
     if x == apple_x and y == apple_y:
     if x == apple_x and y == apple_y:
-        apple_x = random.randint(0,660)
-        apple_y = random.randint(0,480)
+        apple_x=random.randint(0,660)
+        apple_y=random.randint(0,480)
+
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))