save project

diy.py

+arr=[]
+for i in range(3):
+    arr.append([])
+    for j in range(3):
+        arr[i].append(1)
+#2.遍历列表
+for i in arr:
+    print(i)
+for i in range(3):
+    for j in range(3):
+        print(arr[i][j],',',end='')
+    print()
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snake.py

+import pygame
+#引入pygame
+from pygame import locals
+#初始化pygame为创建硬件做准备
+pygame.init()
+
+screen=pygame.display.set_mode((660,440))
+#创建一个窗口
+background=pygame.image.load('bg.png')
+right=pygame.image.load('right.png')
+food=pygame.image.load('apple.png')
+body=pygame.image.load('body.png')
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            #接收到退出事件后退出程序
+            exit()
+    screen.blit(background,(0,0))#背景
+    screen.blit(right,(240,120))#蛇头
+    screen.blit(body,(210,120))#身体 
+    screen.blit(body,(180,120))
+    screen.blit(body,(180,90))
+    screen.blit(food,(360,300))#苹果
+    pygame.display.update()#刷新画面
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