C#'s switch statement is case-sensitive. Is there a way to toggle it so it becomes case-insensitive? [duplicate]

问题

This question already has answers here:

How to make the C# Switch Statement use IgnoreCase (8 answers)

Closed 6 years ago.

C#'s switch() statement is case-sensitive. Is there a way to toggle it so it becomes case-insensitive?

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Thanks, But , I don't like these solutions;

Because case conditions will be a variable , and I don't know if they ALL are UPPER or lower.

回答1:

Yes - use ToLower() or ToLowerInvariant() on its operands. For example:

switch(month.ToLower()) {
    case "jan":
    case "january": // These all have to be in lowercase
         // Do something
         break;
}

回答2:

You can do something like this

switch(yourStringVariable.ToUpper()){
    case "YOUR_CASE_COND_1":
     // Do your Case1
    break;

    case "YOUR_CASE_COND_2":
    // Do your Case 2
    break;

    default:
}

回答3:

Convert your switch string to lower or upper case beforehand

switch("KEK".ToLower())
{
 case "kek":
  CW("hit!");
  break;
}

来源：https://stackoverflow.com/questions/5986694/cs-switch-statement-is-case-sensitive-is-there-a-way-to-toggle-it-so-it-becom