save project

snake.py

@@ -21,7 +21,7 @@ x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 apple_x= 360
 apple_y= 300
-
+score = 0
 setheading = "right"
 snake_head = right
 
@@ -43,20 +43,14 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
-    # 设置贪吃蛇的头部坐标
-    if setheading == "right":
-        x += 30
-    elif setheading == "left":
-        x -= 30
-    elif setheading == "up":
-        y -= 30
-    else:
-        y += 30
-    position.append((x, y))
+    # 设置贪吃蛇的头
     if x == apple_x and y ==apple_y:
-        apple_x = random.randint(0,660)
-        apple_x = random.randint(0,480)
+        num1 = random.randint(1,22)
+        num2 = random.randint(1,16)
+        apple_x = num1 * 30 - 30
+        apple_y = num2 * 30 - 30
+    else:
+        position.pop(0)
     if setheading == "right":
         x += 30
     elif setheading == "left":
@@ -65,8 +59,8 @@ while True:
         y -= 30
     else:
         y += 30
-    position.append((x, y))
     position.pop(0)
+    position.append((x, y))
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去