veyron
2019-12-13
请问视频中的$?啥意思呀
2
John
2019-09-26
老师:
用ls出现的结果，在终端会换行显示
如果用a=$(ls)过后再echo $a. 显示出来的结果只有一行。 换行变成了空格。 能解释一下其中缘由么？
作者回复: 试试 echo $a[@] ，能猜到其中的原因吗？
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