auto save

diy1.py

+i=3
+username = 'python'
+userpassword = '123456'
+while True:
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功")
+            break
+        if name != username:
+            print("不存在")
+        if password != userpassword:
+            print("错误") 
+    else:
+        print("锁定") 
+
+print("欢迎")
+

my_Tetris.py

 import pygame
 from pygame import locals
+import random
 
 pygame.init()   # 初始化
 score = 0
@@ -45,7 +46,17 @@ 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)
+index=random.randint(0,len(shape)-1)
+current_shape=shape[index]
+color=random.choice(cube_colors)
+
+def check(center):
+    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():
@@ -53,11 +64,13 @@ while True:
             exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT:     # 向右
-                if center[1] < 15:
-                    center[1] += 1
+                
             elif event.key == locals.K_LEFT:    # 向左
-                if center[1] > 1:
-                    center[1] -= 1
+                center[1]=center[1]-1
+                if check(center)==False:
+                    center[1]=center[1]+1
+                
+                
             elif event.key == locals.K_DOWN:    # 向下
                 if center[0] < 25:
                     center[0] += 1