C# - as
2020-12-13 14:01
标签：as c# You can use the
as operator to perform certain types of conversions between compatible reference types or
nullable types. The as operator is like a cast operation. However, if the conversion isn‘t possible,
as returns null instead of raising an exception. Consider the following example: The code is equivalent to the following expression except that the
expression variable is evaluated only one time. C# - as 标签：as c# 原文地址：http://blog.csdn.net/troubleshooter/article/details/40543763expression as type
expression is type ? (type)expression : (type)null
Note that the
as operator performs only reference conversions, nullable conversions, and boxing conversions. The
as operator can‘t perform other conversions, such as user-defined conversions, which should instead be performed by using cast expressions.
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