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C# 编程/关键字/add

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关键字addremove 允许您在委托添加到或从事件中移除时执行代码。它的用法类似于属性的getset 关键字

public event MyDelegateType MyEvent
{
    add
    {
        // here you can use the keyword "value" to access the delegate that is being added
        ...
    }
    
    remove
    {
        // here you can use the keyword "value" to access the delegate that is being removed
        ...
    }
}

当委托添加到事件时,add 块中的代码将被执行。类似地,当委托从事件中移除时,remove 块中的代码将被执行。



C# 关键字
abstract as base bool break
byte case catch char checked
class const continue decimal default
delegate do double else enum
event explicit extern false finally
fixed float for foreach goto
if implicit in int interface
internal is lock long namespace
new null object operator out
override params private protected public
readonly ref return sbyte sealed
short sizeof stackalloc static string
struct switch this throw true
try typeof uint ulong unchecked
unsafe ushort using var virtual
void volatile while
C# 特殊标识符(上下文关键字)
add alias async await dynamic
get global nameof partial remove
set value when where yield
上下文关键字(用于查询)
ascending by descending equals from
group in into join let
on orderby select where
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