auto save

2-4-diy6.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("用户名错误,请重新输入!")
+            print("温馨提示:您还有"+str(i)+"次登录机会")
+            continue
+        if password != userpassword:
+            print("密码输入有误,请重新输入!")
+            print("温馨提示:您还有" + str(i) + "次登录机会")
+    else:
+        print("你的账户已被锁定，请一个小时以后再来")
+        exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file

lesson5-diy3.py

+import pygame
+from pygame import locals
+import os
+
+pygame.init()  # 初始化
+# 创建窗口
+screen = pygame.display.set_mode((640, 480))
+# 载入图片、资源
+bg_img = pygame.image.load('background.png')  # 背景图
+play_img = pygame.image.load('play.png')  # 播放按钮
+stop_img = pygame.image.load('stop.png')  # 暂停按钮
+last_img = pygame.image.load('last.png')  # 上一曲按钮
+next_img = pygame.image.load('next.png')  # 下一曲按钮
+logo_img = pygame.image.load('logo.png')  # 下一曲按钮
+
+# 音乐
+music_list = []
+path = "C:\\Users\\bellcode\\Desktop\\test"
+filelist = os.listdir(path)
+for i in filelist:
+    if i[-4:] == ".ogg" or i[-4:] == ".wav":
+        music_list.append(i)
+
+num = -1    
+volume = 0.2
+pygame.mixer.music.set_volume(volume)  # 初始播放音量
+click = 0
+play_button = stop_img
+
+while True:
+    for event in pygame.event.get():
+        if event.type == locals.QUIT:
+            exit()
+        # 按键，控制声音大小
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_UP:
+                volume += 0.1
+                if volume > 1:
+                    volume = 1
+                pygame.mixer.music.set_volume(volume)
+            if event.key == locals.K_DOWN:
+                volume -= 0.1
+                if volume < 0:
+                    volume = 0
+                pygame.mixer.music.set_volume(volume)
+
+        if event.type == locals.MOUSEBUTTONDOWN:
+            if event.button == 1:  # 左击
+                x, y = event.pos
+                if x > 270 and x < 370 and y > 350 and y < 450:
+                    click += 1
+                    if click % 2 == 0:
+                        play_button = stop_img
+                        pygame.mixer.music.unpause()
+                    else:
+                        play_button = play_img
+                        pygame.mixer.music.pause()
+
+    if pygame.mixer.music.get_busy() == False:
+        num += 1
+        if num > len(filelist)-1:
+            num = 0
+        print(num)
+        pygame.mixer.music.load(path + "\\"+music_list[num])
+        pygame.mixer.music.play()
+
+    # 绘制画面
+    screen.blit(bg_img, (0, 0))      # 填充背景
+    screen.blit(play_button, (270, 330))   # 暂停按钮
+    screen.blit(logo_img, (170, 60))    # 中间logo图
+    screen.blit(last_img, (120, 350))   # 上一曲
+    screen.blit(next_img, (420, 350))   # 下一曲
+    # 刷新画面
+    pygame.display.update()
\ No newline at end of file