print upsidedpwn triangle

* 
* * 
* * * 
* * * * 
* * * * * 

for i in range(0, 5):
    for j in range(0, i+1):
        print('*', end=' ')
    print()
 

 

来源：oschina

链接：https://my.oschina.net/u/4421096/blog/3139417