NullReferenceException is a C# version of NullPointerException. To handle and catch it in C#, use try-catch.
The below example shows that a variable is set to null and when we try to print it, it throws an exception that gets caught in the catch −
Try {
a = null;
Console.WriteLine(a);
}catch (NullPointerException ex) {
Console.WriteLine("Variable is Null!");
}上述代码将允许捕获异常并使用catch处理它。
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