自学python 2.

1.T or F
    1>1 or 3<4 or 4>5 and 2>1 and 9>8 or 7<6
    t
    not 2>1 and 3<4 or 4>5 and 2>1 and 9>8 or 7<6
    f

2.值
    8 or 3 and 4 or 2 and 0 or 9 and 7
    8
    0 or 2 and 3 and 4 or 6 and 0 or 3
    4

3.结果
    6 or 2>1 #6
    3 or 2>1 #3
    0 or 5<4 #F
    5<4 or 3 #3
    2>1 or 6 #T
    3 and 2>1 #T
    0 and 3>1 #0
    2>1 and 3 #3
    3>1 and 0 #0
    3>1 and 2 or 2<3 and 3 and 4 or 3>2 #t and 2 or t and 3 and 4 or t=2 or 4 or t=2 or t=2

4.while 循环语句基本结构
    while 条件:
        循环体(代码块)
    else:
        条件为假

5.猜大小
while True:
    a = int(input("输入数字:"))
    if a>66:
        print("大")
    elif a<66:
        print("小")
    else:
        print("正确")
        break

6.3次机会
n = 3
while n>0:
    a = int(input("输入数字:"))
    if a>66:
        print("大")
    elif a<66:
        print("小")
    else:
        print("正确")
        break
    n-=1
    print("剩余机会:%d次" % n)
else:
    print("太笨了")

7.输出1 2 3 4 5 6 8 9 10
(1)n = 1
while n<11:
    if n==7:
        n+=1
        continue
    print(n)
    n+=1

(2)n = 1
while n<11:
    if n != 7:
        print(n)
    n+=1

8.1-100和
n = 1
s = 0
while n<=100:
    s = s + n
    n+=1
print(s)

9.1-100奇数
n = 1
while n<=100:
    if n%2 == 0:
        n+=1
        continue
    else:
        print(n)
        n+=1

10.1-100偶数
n = 1
while n<=100:
    if n%2 == 1:
        n+=1
        continue
    else:
        print(n)
        n+=1

11.1-2+3-4+5..99的和
(1)n = 1
a = 0
while n <= 99:
    a = a + n
    n+=2
n = 2
b = 0
while n <= 99:
    b = b + n
    n += 2
print(a-b)

(2)n = 1
s = 0
while n < 100:
    if n%2 == 0:
        s = s - n
    else:
        s = s + n
    n+=1
print(s)

12.3次登录,剩余次数
c = 1
while c <= 3:
    name = input("用户名:")
    pw = input("密码:")
    if name == "zjx" and pw == "123":
        print("登录成功!")
        break
    else:
        print("登录失败!")
    print("剩余次数:%s" % (3 - c))
    c += 1
else:
    print("登录错误")

13.过敏词汇
num = input("请输入广告词汇:")
if ("最" or "第一" or "国家" or "稀缺") in num:
    print("过敏词汇!")
else:
    print("正确!")