如何以数组的形式读取单行上的数字列表

Question

$line和$lines之间有什么区别？

PS /home/nicholas/power_shell> $line = Get-Content ./line.txt
PS /home/nicholas/power_shell> $line

1 2 3

PS /home/nicholas/power_shell> $line[3]
PS /home/nicholas/power_shell> $line[2]
1 2 3
PS /home/nicholas/power_shell> $line.Length
5
PS /home/nicholas/power_shell> $lines = Get-Content ./lines.txt
PS /home/nicholas/power_shell> $lines

1
2
3

PS /home/nicholas/power_shell> $lines.Length
7
PS /home/nicholas/power_shell> $lines[4]
3
PS /home/nicholas/power_shell> $lines[3]
2
PS /home/nicholas/power_shell> 

如何访问$line中的各个号码？具体来说，获取$line[i]编号。即，位于指定索引处的元素。然而，$line并不像$lines那样是一个数组

Answer 1

per Mathias:

PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> $lines = Get-Content ./lines.txt
PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> $lines                          

1
2
3

PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> $line = Get-Content ./line.txt  
PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> $line                         

1 2 3

PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> -split $line                    

1
2
3

PS /home/nicholas/power_shell> 

不确定这是bash命令还是powershell命令，但很有趣。thx。

---

这种方式对我来说更有意义：

PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> $line.split()

1
2
3

PS /home/nicholas/power_shell> 

然而，当我使用选项卡完成来查看可用选项时：

PS /home/nicholas/power_shell> 
PS /home/nicholas/power_shell> $line.
Count           LongLength      Clear           Equals          GetLongLength   IndexOf         Set             ForEach         
IsFixedSize     Rank            Clone           Get             GetLowerBound   Initialize      SetValue        
IsReadOnly      SyncRoot        CompareTo       GetEnumerator   GetType         Insert          ToString        
IsSynchronized  Add             Contains        GetHashCode     GetUpperBound   Remove          Item            
Length          Address         CopyTo          GetLength       GetValue        RemoveAt        Where           
PS /home/nicholas/power_shell> $line.

CCD_ 7函数(它是函数吗？(没有列出。