save project

snake.py

@@ -45,9 +45,6 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-    if x == apple_x and y == apple_y:
-        apple_x = random.randint(0,660)
-        apple_y = random.randint(0,480)
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -57,6 +54,12 @@ while True:
         y -= 30
     else:
         y += 30
+    if x == apple_x and y == apple_y:
+        num1 = random.randint(0,660)
+        num2 = random.randint(0,480)
+        apple_x = num1 * 30 - 30
+        apple_y = num2 * 30 - 30
+    else:        
         position.append((x, y))
     position.pop(0)
     # 将背景图画上去