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Ref and out Today, my younger brother asked me about the difference between ref and out.In C #, ref and out are two special keywords. You can use them to pass parameters according to references.In general, we usually pass the value to the method.

Http://www.cnblogs.com/davyli/archive/2008/11/01/1324352.html   It may be that when the relationship between value type and reference type in. Net encounters passing parameters to the function, the concept of passing by value and reference will

Parameter array Params:C # Allow you to specify one (only one) specific parameter for a function. This parameter must be the last parameter in the function definition. It is called a parameter. Array. A parameter array can call a function with an

ref keyword causes an argument to be passed by reference, not by value.">The ref keyword passes arguments by reference, not by value. The effect of passing by reference is that any changes to the parameters in the called method are reflected in the

Oracle Series: REF CursorIn the Oracle series above: Cursor (see:http://blog.csdn.net/qfs_v/archive/2008/05/06/2404794.aspx)Mention a thought: how do I get cursors to be passed as parameters? To solve this problem, you need to use the REF Cursor.1,

I had this problem when I was learning C #, but I didn't dig into it. Last night, when I thought about this problem, I tried to knock the code, and the result from the running, the more you see the more chaotic. On the basis of the review of some

Today, we will briefly summarize the usage of cursor in PL/SQL. Cursor category: -- Explicit cursor-- Static cursor | | -- Implicit cursorCursor |-- Strong type (Restriction), specifying the return type-- Dynamic Cursor -- ref cursor |-- Weak type

ref (C # Reference) Visual Studio 2015Other versions The REF keyword causes the parameter to be passed by reference, not by value. The effect passed by reference is that any changes to the parameters in the called method are reflected in the

The ref keyword allows the parameter to be passed by reference. The effect is that when the control is passed back to the call method, any changes to the parameters in the method will be reflected in this variable. To use the ref parameter, you must

No.1: If you do not use ref or out when declaring a parameter for a method, the parameter can have an associated value. This value can be changed in the method, but the changed value is not retained when the control is passed back to the call