34 lines
470 B
C#
34 lines
470 B
C#
|
using System;
|
||
|
|
||
|
class X
|
||
|
{
|
||
|
Action<string> a;
|
||
|
|
||
|
public static void Main ()
|
||
|
{
|
||
|
string x = null;
|
||
|
string y = null;
|
||
|
string[] z = null;
|
||
|
|
||
|
x?.Contains (y?.ToLowerInvariant ());
|
||
|
x?.Contains (y?.Length.ToString ());
|
||
|
|
||
|
var res = x?[y?.Length ?? 0];
|
||
|
|
||
|
var res2 = z?[x?.Length ?? 0];
|
||
|
|
||
|
x?.Foo (y?.ToLowerInvariant ());
|
||
|
|
||
|
X xx = null;
|
||
|
xx?.a (y?.ToLowerInvariant ());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static class E
|
||
|
{
|
||
|
public static string Foo (this string arg, string value)
|
||
|
{
|
||
|
return "";
|
||
|
}
|
||
|
}
|