# 給變量賦值數(shù)字類型數(shù)據(jù)
int_data = 100				# 整數(shù) int
float_data = 8.88			# 小數(shù) float
complex_data = 3+5j			# 復(fù)數(shù) complex

# 查看變量所屬數(shù)據(jù)類型
print(type(int_data))       # <class 'int'>
print(type(float_data))     # <class 'float'>
print(type(complex_data))   # <class 'complex'>

# 判斷兩個(gè)數(shù)據(jù)的類型是否相等
print(isinstance(int_data, int))	# True
print(isinstance(float_data, int))	# False

# 加
print(2 + 1)		# 3 
print(2 + 6.6)		# 8.6   整數(shù)和浮點(diǎn)數(shù)運(yùn)算結(jié)果為浮點(diǎn)數(shù)
print(2.1 + 1.2)	# 3.3

# 減
print(2 - 1)		# 1
print(2 - 6.6)		# -4.6
print(2.1 - 1.2)	# 0.9000000000000001
print(round(2.1 - 1.2, 1))	# 0.9

# 乘
print(2 * 1)		# 2
print(2 * 6.6)		# 13.2
print(2.1 * 1.2)	# 2.52

# 除
print(2 / 1)		# 2.0
print(6.66 / 2)		# 3.33
print(6.66 / 2.22)	# 3.0

# 求余
print(10 % 3)		# 1
print(20.22 % 3)	# 2.219999999999999

# 冪運(yùn)算
print(5 ** 2)	# 5的平方，25
print(2 ** 7)	# 2的7次方，128

# int() 
# 不傳參數(shù)則為0
int()			# 0
# 將字符串轉(zhuǎn)為整數(shù)
int("666")		# 666
# 向下取整
int(6.66)		# 6
# 將數(shù)字轉(zhuǎn)為8進(jìn)制
int('12',8)		# 10

# flaot()
# 不傳參數(shù)則為0.0
flaot()			# 0.0
# 將字符串轉(zhuǎn)為浮點(diǎn)數(shù)
float("6.88")	# 6.88

abs(-2.66)		# 2.66

max(1, 2, 3)	# 3
max([6, 7, 8])	# 8

min(1, 2, 3)	# 1

pow(10,2)		# 100
pow(10,2,3)		# 1

round(5.68)		# 6
round(5.64, 1)	# 5.6

import math

print(dir(math))

# 打印內(nèi)容
[
    '__doc__', '__file__', '__loader__', 
     '__name__', '__package__', '__spec__', 
     'acos', 'acosh', 'asin', 
     'asinh', 'atan', 'atan2', 
     'atanh', 'ceil', 'comb', 
     'copysign', 'cos', 'cosh', 
     'degrees', 'dist', 'e', 
     'erf', 'erfc', 'exp', 
     'expm1', 'fabs', 'factorial', 
     'floor', 'fmod', 'frexp', 
     'fsum', 'gamma', 'gcd', 
     'hypot', 'inf', 'isclose', 
     'isfinite', 'isinf', 'isnan', 
     'isqrt', 'ldexp', 'lgamma', 
     'log', 'log10', 'log1p', 
     'log2', 'modf', 'nan', 
     'perm', 'pi', 'pow', 
     'prod', 'radians', 'remainder', 
     'sin', 'sinh', 'sqrt', 
     'tan', 'tanh', 'tau', 
     'trunc'
]

import math

math.ceil(5.4)	# 6
math.ceil(5.5)	# 6

math.fabs(-6)	# 6.0
math.fabs(6)		# 6.0

math.floor(6.9)		# 6

math.fmod(5, 2)		# 1.0

math.isclose(8.005, 8.450, abs_tol = 0.4)	# False
math.isclose(8.005, 8.450, abs_tol = 0.5)	# True
print(0.1+0.2)		# 0.30000000000000004
math.isclose(0.1+0.2, 0.3)	#True

math.isnan(float("NaN"))	# True

math.pow(2, 10)		# 1024.0

math.sqrt(25)		# 5.0

import math

math.ceil(5.4)	# 6
math.ceil(5.5)	# 6

math.fabs(-6)	# 6.0
math.fabs(6)		# 6.0

math.floor(6.9)		# 6

math.fmod(5, 2)		# 1.0

math.isclose(8.005, 8.450, abs_tol = 0.4)	# False
math.isclose(8.005, 8.450, abs_tol = 0.5)	# True
print(0.1+0.2)		# 0.30000000000000004
math.isclose(0.1+0.2, 0.3)	#True

math.isnan(float("NaN"))	# True

math.pow(2, 10)		# 1024.0

math.sqrt(25)		# 5.0

import random

# 從1-100中選一個(gè)整數(shù)
print(random.randint(1,100))			# 80

print(random.choice([1, 2, 3, 5, 9]))	# 2
print(random.choice('A String'))		# A
print(random.choice(range(10)))			# 8

# 從 1-100 中選取一個(gè)奇數(shù)
print(random.randrange(1, 100, 2))		# 57
# 從 0-99 選取一個(gè)隨機(jī)數(shù)
print(random.randrange(100))			# 91
# 隨機(jī)選取0到100間的偶數(shù)
print(random.randrange(0, 101, 2))		# 22

print(random.random())					# 0.699045676948276

print(random.uniform(1, 100))			# 66.79353123577998

# 向下取整，轉(zhuǎn)為整數(shù)
print(int(58.86))   # 58

import math
# 向上取整，轉(zhuǎn)為整數(shù)
print(math.ceil(58.86))     # 59

# 四舍五入，轉(zhuǎn)為整數(shù)
print(round(58.86))     # 59

# 四舍五入，保留2位小數(shù)
print(round(4.859999999999999, 2))  # 4.86

# 分割整數(shù)和小數(shù)
print(str(58.866).split(".")[0])    # 58