print(a if a>b else b)

a,b = b,a
list1[i],list[j]=list1[j],list[i]

s = 'aaccbgd'

print(''.join(sorted(list(s))))

l = [4,5,2,3,9]

print(sorted(l))  #从小到大排序

print(sorted(l,reverse=True))  #从大到小排序

d = {3: 2, 2: 1, 1: 3}

l1 = sorted(d.items(),key=lambda x:x[0]) #根据key排序

l2 = sorted(d.items(),key=lambda x:x[1]) #根据value排序

s = 'abcde'

l = list(s)

l = [1,2,4,4,3]

#s = str(l) #直转

s = ''.join([str(x) for x in l]) #使用join连接需转为string格式

d = {3: 2, 2: 1, 1: 3}

l1 = sorted(d.items(),key=lambda x:x[0]) #根据key排序

l = [1, 2, 4, 4, 3]

s = ['s', 'y', 'o', 'm', 'z']

d = dict(zip(l,s))

ip="192.168.1.1"

list_ip = list(map(int,ip.split(".")))

res = ""

for i in list_ip:

    res += str("%08d" % (int(bin(i)[2:])))

print(int(res,2))

value = 0

for i in range(100):  # 累加1-100

    value += i

print(value)

l = [2,4,5,7,3,8,1,3]

n = len(l)

for i in range(n):  #冒泡排序

    for j in range(n-i-1):

        if l[j] > l[j+1]:

            l[j],l[j+1]=l[j+1],l[j]

i = 1

while i <= 9: #打印99乘法表

    a = 1  # 列数计数器

    while a <= i:

        print("%d * %d = %d" % (a, i, i * a), end="\t")

        a += 1

    print("")

    i += 1

print(s.find("a"))

print(list1.index("hello"))

print(dict1.get("k1"))

print(dict1.get("k1",0))

def Fibonacci(n): #斐波那契数列

    if n == 1 or n == 2:

        return 1

    elif n == 3:

        return 2

    else:

        return Fibonacci(n - 1) + Fibonacci(n - 2)

num,s,l,d = 0,"yes",[],{}

flag = True

print(1 if flag else -1)

x = [1,1,1]

y = [1,2,3]

z = [a+b for a in x for b in y]  #返回各种相加的结果

q = [a+b for a,b in zip(x,y)]    #返回对应下标相加的结果

x = lambda i:i**2  #使用lambda简化函数内容

print(x(4))

d = {3: 2, 2: 1, 1: 3}

l1 = sorted(d.items(),key=lambda x:x[0]) #使用lamda指定排序的字段：根据key排序

l2 = sorted(d.items(),key=lambda x:x[1]) #使用lamda指定排序的字段：根据value排序