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snake.py

@@ -32,27 +32,39 @@ while True:
             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
+                x += 30
+                position.append((x, y))
+                position.pop(0)
             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
+                x -= 30
+                position.append((x, y))
+                position.pop(0)
             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
+                y -= 30
+                position.append((x, y))
+                position.pop(0)
             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
+                y += 30
+                position.append((x, y))
+                position.pop(0)
 
 
     # 设置贪吃蛇的头部坐标
     # 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))
-    position.pop(0)
+    # if setheading == "right":
+    #     x += 30
+    # elif setheading == "left":
+    #     x -= 30
+    # elif setheading == "up":
+    #     y -= 30
+    # else:
+    #     y += 30
+    # position.append((x, y))
+    # 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))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去