Question

我有一些像这样的c＃行：

if (justification.Contains("CT_") ||
justification.Contains("CTPD_") ||
justification.Contains("PACS_") ||
justification.Contains("NMG_") ||
justification.Contains("TFS_ID") ||
justification.Contains("AX_") ||
justification.Contains("MR_") ||
justification.Contains("FALSE_POSITIVE") ||                             
justification.Contains("EXPLICIT_ARCH_TEAM_DESIGN_DECISON") ||
justification.Contains("EXPLICIT_ARCH_TEAM_DESIGN_DECISION"))
{
    // justification is ok.
}else
{
    reporter.Report(syntaxNode.GetLocation(), syntaxNode,
    Resources.SpecifySuppressMessageJustificationTitle);
}

我的想法是将所有这些字符串放入arra和我的IF表达式中，我只是迭代我的数组（或枚举IEnumerable）。但是我怎么能这样做呢？

我从这里开始：

IEnumerable<string> someValues = new List<string>() { "CT_", "CTPD","PACS_", "NMG_", "AX_" };

if (justification == BUT HOW I HAVE TO RUN THROUGH MY someValuesand get the
stringValues?)
{

}

Answer 1

你可以这样做，如果你需要不区分大小写包含检查你可以使用justification.ToUpper()得到大写，因为你已经有大写的值列表

var someValues = new List<string>() { "CT_", "CTPD","PACS_", "NMG_", "AX_" };
if(someValues.Any(x=>justification.Contains(x))
{
   // justification is ok.
}else
{
   // not matching
}

Answer 2

var someValues = new[] { "CT_", "CTPD","PACS_", "NMG_", "AX_" };

if (someValues.Any(x => justification.Contains(x))
{
    // justification is ok.
}

Answer 3

如果理由是IEnumerable（或列表），您可以使用Intersect

拦截会产生集可在两个列表中找到的项目。

IEnumerable<string> someValues = new List<string>() { "CTPD","PACS_",  "NMG_", "AX_"};

if (justification.Intersect(someValues).Any())
{
   // Atleast one match was found.
}

如果对齐变量是字符串，则可以使用Any()

if(someValues.Any(x => justification.Contains(x))
{
    // A match was found.
}

如何使用LINQ缩短if（或表达式）？

3 个答案: