x = 10   # int
y = 6.3  # float
z = 2j   # complex

print(type(x))
print(type(y))
print(type(z))

x = 10
y = 37216654545182186317
z = -465167846

print(type(x))
print(type(y))
print(type(z))

x = 3.50
y = 2.0
z = -63.78

print(type(x))
print(type(y))
print(type(z))

x = 27e4
y = 15E2
z = -49.8e100

print(type(x))
print(type(y))
print(type(z))

x = 2+3j
y = 7j
z = -7j

print(type(x))
print(type(y))
print(type(z))

x = 10 # int
y = 6.3 # float
z = 1j # complex

# 把整数转换为浮点数

a = float(x)

# 把浮点数转换为整数

b = int(y)

# 把整数转换为复数：

c = complex(x)

print(a)
print(b)
print(c)

print(type(a))
print(type(b))
print(type(c))

import random

print(random.randrange(1,10))