python2.7和python3.5怎么共存

     Python2.7的环境路径已经被我删除,如果要用python2.7就进入到python2.7的路径下,命令行python2   svm.py就可以运行python文件,而且我将python2.7的python改为python2


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转载自blog.csdn.net/huangshaoyin/article/details/80581439