python查看一条语句的执行效率和字节码

>>> from timeit import timeit
>>> timeit("a = {'a': 1, 'b': 2}")
0.424...
>>> timeit("a = dict(a = 1, b = 2)")
0.889...

>>> import dis
>>> dis.dis("{ }")
          0 <123>           32032
>>> dis.dis("dict()")
          0 LOAD_CONST      25449 (25449)
          3 LOAD_GLOBAL     10536 (10536)
>>>

标签：语句,...,timeit,字节,python,LOAD,dict,25449,dis
来源： https://blog.csdn.net/weixin_43270713/article/details/121081920