"""
x**0.5
math.pow(x,0.5)
哪个快
用符号更快
by_symbol(),avg:0.012180216483431212
by_math(),avg:0.04381652316952369
"""
import math
from tool.timeit import test_commands
def by_symbol():
return 2 ** 0.5
def by_math():
return math.pow(2, 0.5)
if __name__ == '__main__':
commands = [
"by_symbol()",
"by_math()",
]
test_commands(commands, setup="from __main__ import by_symbol,by_math")
"""
x**2
x*x
哪个快
后者快
2**2,avg:0.0025651156002803027
2*2,avg:0.0020352332593166407
"""
from tool.timeit import test_commands
if __name__ == '__main__':
commands = [
"2**2",
"2*2",
]
test_commands(commands, repeat=1000)
"""正常的 str 与 空内插
print('test')
print(f'test')
因为 print 需要输出，所以只测试赋值语句
测试发现差距不大，只有当 f'' 中需要计算时才会有差距
"""
from tool.timeit import test_commands
if __name__ == '__main__':
commands = ["a='test'", "b=f'test'", "c=f'test{1+2}'"]
test_commands(commands)