__important__（‘ random ’）.randint 导入模块函数只能用一次，from random important randint 是导入对应模块中的函数，两种写法那种性能更高?求大神指点？
推荐学习书目
› Learn Python the Hard Way
Python Sites
› PyPI - Python Package Index
› http://diveintopython.org/toc/index.html
› Pocoo
值得关注的项目
› PyPy
› Celery
› Jinja2
› Read the Docs
› gevent
› pyenv
› virtualenv
› Stackless Python
› Beautiful Soup
› 结巴中文分词
› Green Unicorn
› Sentry
› Shovel
› Pyflakes
› pytest
Python 编程
› pep8 Checker
Styles
› PEP 8
› Google Python Style Guide
› Code Style from The Hitchhiker's Guide
This topic created in 2958 days ago, the information mentioned may be changed or developed.
 |
1
bookding0 Apr 12, 2018  1
1. important -> import
2. from random import randint 等价于 randint = __import__('random').randint 3.你可以理解为性能没区别 4.Python 比较 CPU 性能没什么太大意义，高并发下 io 性能才是需要考虑的。 |
 |
2
julyclyde Apr 13, 2018
important ……
楼主建议还是先学一下英语，别在性能高低这种有的没的问题上浪费时间 |
Select Language