#5.2
print("car" == "car ")  #False
print("car" == "car")   #True
print("car" == "Car".lower())   #True
print((10-3) == 7)  #True
print((10-3) != 8)  #True
print(10 > 3)   #True
print(10 >= 13) #False
print(10 >3 and 3 >3) #False
print(10 >3 or 3 >3)  #True

lst = ['a',3,'哈哈']
lst1 = 3
print(lst1 in lst)  #True
print('哈哈' not in lst)  #False

#5.3#1
alien_color = "green"
if alien_color == "green":
    print("恭喜你獲得了5點(diǎn)懦尝！")

#5.4#2
alien_color = "yellow"
if alien_color == "green":
    print("射殺綠色外星人獲得5點(diǎn)！")
else:
    print("射殺高級(jí)外星人獲得10點(diǎn)拐格！")

#5.5#3
if alien_color == "green":
    print("射殺綠色外星人獲得5點(diǎn)赞别！")
elif alien_color =="yellow":
    print("射殺黃色外星人獲得10點(diǎn)破花！")
else:
    print("射殺高級(jí)外星人獲得15點(diǎn)紊撕！")
    
#5.6
age = 10
if age < 2:
    print("嬰兒")
elif age >= 2 and age < 4:
    print("蹣跚學(xué)步")
elif age >= 4 and age < 13:
    print("兒童")
elif age >= 13 and age < 20:
    print("青少年")
elif age >= 20 and age < 65:
    print("成年人")
else:
    print("老年人")
    
#5.7
favorite_fruits = ["獼猴桃","蘋(píng)果","西瓜"]
if "蘋(píng)果" in favorite_fruits:
    print("你真的好喜歡蘋(píng)果呀楼眷！")
if "黃瓜" in favorite_fruits:
    print("你真的好喜歡黃瓜呀十性！")
if "獼猴桃" in favorite_fruits:
    print("你真的好喜歡獼猴桃呀！")
~~~~~~~~~~~~~~~~~~~~~~~~~~
False
True
True
True
True
True
False
False
True
True
False
恭喜你獲得了5點(diǎn)葵诈！
射殺高級(jí)外星人獲得10點(diǎn)！
射殺黃色外星人獲得10點(diǎn)祟同！
兒童
你真的好喜歡蘋(píng)果呀作喘！
你真的好喜歡獼猴桃呀！

#5.8
users = ["admin","Jack","波哥","波妞","大青"]
for user in users:
    if user == "admin":
        print("你好" + "管理員晕城，" + "您是否需要看一看狀態(tài)報(bào)告泞坦？")
    else:
        print("你好" + user + "歡迎回來(lái)！")

#5.9
users = []
if not users:
    print("沒(méi)有用戶(hù)啊")
    
for user in users:
    if user == "admin":
        print("你好" + "管理員砖顷，" + "您是否需要看一看狀態(tài)報(bào)告贰锁？")
    else:
        print("你好" + user + "歡迎回來(lái)！")

#5.10
current_users = ["boGe","波妞","大青","想飛","李白"]
new_users = ["Boge","啊啊","嗯嗯","啊哈","李白"]

for new_user in new_users:
    #下面這種創(chuàng)建列表的方式為列表推導(dǎo)式（列表解析式）
    if new_user.lower() in [current_user.lower() for current_user in current_users]:
        print(new_user +"這個(gè)用戶(hù)名已經(jīng)存在滤蝠，請(qǐng)重新起個(gè)名字")
    else:
        print(new_user + "未被使用")

#5.11
nums = [i for i in range(1,10)]
for num in nums:
    if num == 1:
        print("1st")
    elif num == 2:
        print("2nd")
    elif num == 3:
        print("3rd")
    else:
        print(str(num) + "th")
~~~~~~~~~~~~~~~~~~~~~~~
你好管理員豌熄，您是否需要看一看狀態(tài)報(bào)告？
你好Jack歡迎回來(lái)物咳！
你好波哥歡迎回來(lái)锣险！
你好波妞歡迎回來(lái)！
你好大青歡迎回來(lái)览闰！
沒(méi)有用戶(hù)啊
Boge這個(gè)用戶(hù)名已經(jīng)存在芯肤，請(qǐng)重新起個(gè)名字
啊啊未被使用
嗯嗯未被使用
啊哈未被使用
李白這個(gè)用戶(hù)名已經(jīng)存在，請(qǐng)重新起個(gè)名字
1st
2nd
3rd
4th
5th
6th
7th
8th
9th