在C#中,你是如何确定价值而不是参考的?
我目前处在一个十字路口。
int prev = 0;
foreach(Activity a in activities)
{
//----
Do something
//----
prev = a.number
}
问题只是每当涉及其变化的下一个活动时才会提到这个问题。 我无需提及。
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斜体是一种价值类型,因此,你总是重新确定价值而不提及。
It would be a reference if you just use out keyword unless it just passes the values. in this case prev updates cause each time you overwrite existing value with the new value. that s why the value inside pre changes.
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