commensense

pypcd install using codes below instead of pip install pypcd which is not well maintained. pip3 install --upgrade git+https://github.com/klintan/pypcd.git 大小汽车 90m 摩托车 70m 三轮车 75m 自行车、行人 60m

1.split() vs split(’ ‘) ' how are you? '.split() #['how', 'are', 'you?'] ' how are you? '.split(' ') #['', 'how', 'are', '', 'you?', '']