auto save

my_Tetris.py

 import pygame
 from pygame import locals
+import random # 提到随机 就应该想到随机模块，前面便是它的导入方式
 
 pygame.init()   # 初始化
 score = 0
@@ -45,22 +46,33 @@ cube_colors = [
     (153, 0, 51), (204, 255, 102), (255, 153, 0)]
 
 center = [2, 8]     # 第2行第8列
-current_shape = [(0, -1), (0, 0), (0, 1), (-1, 0)]
-
+shape = random.choice(shape_list) #random.choice() 是指从非空序列（列表、元组等）中随机选取一个元素
+index = random.randint(0,len(shape)-1) # random.randint() 用于生成指定范围内的整数
+current_shape = shape[index]
+color = random.choice(cube_colors)
+# 在python中 变量及自定义函数的命名规则是：只能包含数字、字母、下划线且不能以数字开头。
+def check(center):  # 在python中 定义自定义函数应以 def开头 例如 ： def abc():
+    for cube in current_shape:
+        cube = (cube[0] + center[0], cube[1] + center[1])
+        if cube[0] < 1 or cube[1] < 1 or cube[0] > grid_num_height or cube[1] > grid_num_width:
+            return False
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             exit()
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_RIGHT:     # 向右
-                if center[1] < 15:
+            if event.key == locals.K_LEFT:
+                center[1] -= 1
+                if check(center) == False:
                     center[1] += 1
-            elif event.key == locals.K_LEFT:    # 向左
-                if center[1] > 1:
+            elif event.key == locals.K_RIGHT:
+                center[1] += 1
+                if check(center) == False:
                     center[1] -= 1
-            elif event.key == locals.K_DOWN:    # 向下
-                if center[0] < 25:
-                    center[0] += 1
+            elif event.key == locals.K_DOWN:
+                center[0] += 1
+                if check(center) == False:
+                    center[0] -= 1
 
     # 将背景图画上去
     screen.blit(background, (0, 0))

test.py

+a = 0
+if a >= 4:
+    print("123")
+elif 1<= a <=3
+    print('456')
+# NameError: name '*****' is not defined 其中 ***为我们的报错变量，此报错信息为 *** 这个变量未被定义(not defined)，
+# 因此我们需要去前面定义一下此变量
+
+# SyntaxError: invalid syntax 这个报错是提示我们的语法有错误，因此我们需要去检查本行代码，
+# 如若没有问题，则去前面几行去检查
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