计算字符串中的字符串数量？

Question

你会如何使用Powershell计算字符串中的字符串数？

例如:

$a = "blah test <= goes here / blah test <= goes here / blah blah"

我想算一下<= goes here /上面出现的次数.

Answer 1

另一种方式(类似于@mjolinor方式)在一行中:

([regex]::Matches($a, "<= goes here /" )).count

Answer 2

我有一根绳子，里面有一堆管子。我想知道有多少，所以我用这个来得到它。只是另一种方式:)

$ExampleVar = "one|two|three|four|fivefive|six|seven";
$Occurrences = $ExampleVar.Split("|").GetUpperBound(0);
Write-Output "I've found $Occurrences pipe(s) in your string, sir!";

• 马库斯

Answer 3

使用正则表达式：

$a = "blah test <= goes here / blah test <= goes here / blah blah"
[regex]$regex = '<= goes here /'
$regex.matches($a).count
2