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| public class MyClass | |
| { | |
| public static void UseParams(params int[] list) | |
| { | |
| for (int i = 0; i < list.Length; i++) | |
| { | |
| Console.Write(list[i] + " "); | |
| } | |
| Console.WriteLine(); | |
| } | |
| public static void UseParams2(params object[] list) | |
| { | |
| for (int i = 0; i < list.Length; i++) | |
| { | |
| Console.Write(list[i] + " "); | |
| } | |
| Console.WriteLine(); | |
| } | |
| static void Main() | |
| { | |
| // You can send a comma-separated list of arguments of the | |
| // specified type. | |
| UseParams(1, 2, 3, 4); | |
| UseParams2(1, 'a', "test"); | |
| // A params parameter accepts zero or more arguments. | |
| // The following calling statement displays only a blank line. | |
| UseParams2(); | |
| // An array argument can be passed, as long as the array | |
| // type matches the parameter type of the method being called. | |
| int[] myIntArray = { 5, 6, 7, 8, 9 }; | |
| UseParams(myIntArray); | |
| object[] myObjArray = { 2, 'b', "test", "again" }; | |
| UseParams2(myObjArray); | |
| // The following call causes a compiler error because the object | |
| // array cannot be converted into an integer array. | |
| //UseParams(myObjArray); | |
| // The following call does not cause an error, but the entire | |
| // integer array becomes the first element of the params array. | |
| UseParams2(myIntArray); | |
| } | |
| } | |
| /* | |
| Output: | |
| 1 2 3 4 | |
| 1 a test | |
| 5 6 7 8 9 | |
| 2 b test again | |
| System.Int32[] | |
| */ |