1、输入函数input()
yjh = input('输入一句话')
print(yjh)
a = input('第一个数字')
b = input('第二个数字')
print(int(a)+int(b))
2、运算符
print(1+1)
print(1-1)
print(1*1)
print(1/2)
print(11//2)
print(11%2)
print(2**3)
a = 1+1
a = b = c = d =20
print(a,b,c)
a += 30
b -= 30
c *= 30
d /= 2
print(a,b,c,d)
e,f,g = 1,2,3
print(e,f,g)
a,b = 10,20
a,b = b,a
print(a,b)
a,b = 10,20
print('a>b吗',a>b)
print('a<b吗',a<b)
print('a<=b吗',a<=b)
print('a>=b吗',a>=b)
print('a!=b吗',a!=b)
print('a==b吗',a==b)
a = 10
b = 10
print(a==b)
print(a is b)
lst1=[11,22,33,44]
lst2=[11,22,33,44]
print(lst1==lst2)
print(lst1 is lst2)
print(lst1 is not lst2)
a,b = 1,2
print(a==1 and b==2)
print(a==1 and b>2)
print(a==1 or b!=2)
f = True
print(not f)
s = 'XCsss98'
print('s' in s )
print('98' not in s)
print(4 & 8)
print(4 | 8)
print(4<<1)
print(4>>1)