os.path.join()函數(shù)：連接兩個(gè)或更多的路徑名組件

? ? ? ? ? ? ? ? ? ? ? ? ?1.如果各組件名首字母不包含’/’，則函數(shù)會(huì)自動(dòng)加上

　　　　　　　　　2.如果有一個(gè)組件是一個(gè)絕對(duì)路徑，則在它之前的所有組件均會(huì)被舍棄

　　　　　　　　　3.如果最后一個(gè)組件為空，則生成的路徑以一個(gè)’/’分隔符結(jié)尾

Demo1

import os

Path1 = 'home'
Path2 = 'develop'
Path3 = 'code'

Path10 = Path1 + Path2 + Path3
Path20 = os.path.join(Path1,Path2,Path3)
print ('Path10 = ',Path10)
print ('Path20 = ',Path20)

輸出

?

Path10 = homedevelopcode
Path20 = home\develop\code

?

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?

Demo2

?

import os

Path1 = '/home'
Path2 = 'develop'
Path3 = 'code'

Path10 = Path1 + Path2 + Path3
Path20 = os.path.join(Path1,Path2,Path3)
print ('Path10 = ',Path10)
print ('Path20 = ',Path20)?
輸出

Path10 = /homedevelopcode
Path20 = /home\develop\code

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Demo3

import os

Path1 = 'home'
Path2 = '/develop'
Path3 = 'code'

Path10 = Path1 + Path2 + Path3
Path20 = os.path.join(Path1,Path2,Path3)
print ('Path10 = ',Path10)
print ('Path20 = ',Path20)?

輸出

Path10 = home/developcode
Path20 = /develop\code

--------------------------------------------------------------

Demo4

import os

Path1 = 'home'
Path2 = 'develop'
Path3 = '/code'

Path10 = Path1 + Path2 + Path3
Path20 = os.path.join(Path1,Path2,Path3)
print ('Path10 = ',Path10)
print ('Path20 = ',Path20 )

輸出

Path10 = homedevelop/code
Path20 = /code

轉(zhuǎn)：https://blog.csdn.net/hduxiejun/article/details/80289476?

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