我有两个文件,我正在执行连接操作,如下所示:
nmmadaan@nmmadaan] cat one.txt ~
a b
e f
c k
nmmadaan@nmmadaan] cat two.txt ~
a h
c j
e p
nmmadaan@nmmadaan] join one.txt two.txt ~
a b h
e f p
nmmadaan@nmmadaan] join two.txt one.txt ~
a h b
e p f
为什么加入 two.txt one.txt 不将第一列作为 'c' 的行。为什么两个连接都考虑第一列中带有“e”的行?