objects and types (arrays, ref, out)

1 class Program2     {3         //array is a reference type4         //If you pass other reference types, such as arrays or classes, to a method, the corresponding method uses that reference type to adapt the values in the array .5         //and the new value is reflected on the original array6         Static voidSomeFunction (int[] INTs,inti)7         {8ints[0]= -;9i =Ten;Ten         } One  A         //ref parameter; The method will affect the numeric change of the corresponding parameter by using the parameter of the keyword -         //and the ref parameter needs to be initialized -         Static voidSomeFunction1 (ref intj) the         { -j = -; -         } -  +         //out parameter, out parameter can not be initialized -         //This parameter is passed by reference, and the method returns W to preserve the change to the W value. +         Static voidSomeFunction2 ( out intW) A         { atW = -; -         } -  -         Static voidMain (string[] args) -         { -             #regionSomeFunction in  -             int[] INTs = {1,2,3,4 }; to             inti =1; +  - SomeFunction (INTs, i); the  *Console.WriteLine (ints[0]); $ Console.WriteLine (i);Panax Notoginseng  -  the             //output Result: 100,1 +             //where I is not a change. A  the             #endregion +  -             #regionSomeFunction1 $  $             intj =1;//correct -             //Int J;//Error -  theSomeFunction1 (refj); - Wuyi Console.WriteLine (j); the  -             //Output Result: Wu             //The value of J has changed -  About             #endregion $  -             #regionSomeFunction2 -  -             intW//correct A             //int w = 1;//correct +              theSomeFunction2 ( outW); -  $ Console.WriteLine (w); the  the             //Output Result: the             //the value of W has changed the              -             #endregion in         } the}

View Code

objects and types (arrays, ref, out)