myvar="string1,string2,string3" IFS=","read-a myarray <<< $myvar echo"My array: ${myarray[@]}" echo"My array: ${myarray[0]}" echo"My array: ${myarray[1]}" echo"My array: ${myarray[2]}" echo"Number of elements in the array: ${#myarray[@]}" 运行结果均为:...
The .Split()function splits the input string into the multiple substrings based on the delimiters, and it returns the array, and the array contains each element of the input string. By default, the function splits the string based on the whitespace characters like space, tabs, and line-bre...
You are correct that both split a string into an array of substrings, but some similarities and differences are listed below: First, they have different syntax because Split() is a method and -Split is an operator; you can refer to the last two examples to understand it. Both split the...
我需要从下面的输入中拆分IP和主机名,并使用powershell将其转换为数组对象我有一个如下的输入 $docu_results = 'existing IPs: "192.168.1.12","","192.168.1.15","192.168.1.16" existing hostname: "node.example.com","node1.example.com","node2.example.com",""' 我的预期输出如下所示 $existing_ips...
array get 命令提取数组索引、元素值对并将这些值对组织成一个列表。而 array set 命令 则将一个列表(数据要成对)转换成一个数组。例 array names命令 array names 返回所有元素索引名与模式 pattern 匹配的元素索引名列表。模式 pattern 和 string match 的模式格式相同。如果 pattern 没有指定,则返回所有数组元...
sh[options][file]#选项-c string:命令从-c后的字符串读取。-i:实现脚本交互。-n:进行shell脚本的语法检查。-x:实现shell脚本逐条语句的跟踪。-s:用于从标准输入中读取命令,接收命令参数在子shell中执行; 使用案例: 代码语言:javascript 代码运行次数:0 ...
Join()方法曾经在上一部分演示Split()提到过,它可以将一个数组或者列表字符串合以指定分隔符并成一个字符串。例如自定义一个函数,移除多余的白空格。 1 2 3 4 5 functionRemoveSpace([string]$text) { $private:array=$text.Split(" ", ` [StringSplitOptions]::RemoveEmptyEntries) ...
into an array of strings) */ char ** splitline(char * line) /* * purpose: split a line into array of white - space separated tokens * returns: a NULL-terminated array of pointers to copies of the * tokens or NULL if line if no tokens on the line * action: travers the array, ...
PS> $empty = $null PS> $empty[0] Error: Cannot index into a null array. 因此,在尝试访问数组中的元素之前,请确保数组不是 $null。Count数组和其他集合具有计数属性,可告知数组中有多少项。PowerShell 复制 PS> $data.count 4 PowerShell 3.0 向大多数对象添加了计数属性。 你可以使用单个对象,它应该...
如果您的變數是 $null,而您嘗試將其作為陣列進行索引,則會發生 System.Management.Automation.RuntimeException 例外狀況,並顯示訊息 Cannot index into a null array。PowerShell 複製 PS> $empty = $null PS> $empty[0] Error: Cannot index into a null array. 因此,在您嘗試存取這些陣列內的元素之前,請...