python 输出环境变量

 

import os  
# Access all environment variables   
print('*---------------ENVIRON-------------------*')  
print(os.environ)  
print('*----------------HOME------------------*')  
# Access a particular environment variable   
print(os.environ['HOME'])  
print('*--------------PATH--------------------*')  
print(os.environ['PATH'])  
print('*----------------------------------*')