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# coding=UTF-8

# Everything is object in python

# Built-in type

print (type(1)) # 1 是什麼型態？

print (type(1L)) # 加上 L 呢？

print (type(111111111111111111111111111111111)) # 太長的整數會自動使用 long 型態

print (type(3.14)) # 浮點數是 float 型態

print (type(True)) # 布林值是 bool 型態

print (type(3 + 4j)) # 支援複數的 complex 型態

print (2 ** 100) # 2 的 100 次方

# / => division

# // => floor division

print(10/3)

print(10//3)

print(10/3.0)

print(10//3.0)

# float bias

print(repr(1.0 - 0.8))

print(1.0-0.8)

# using Decimal to calculate float

import decimal

a = decimal.Decimal('1.0')

b = decimal.Decimal('0.8')

print (a - b)