[英]C# - pass on variable amount of parameters to other method within a method
[英]In C#, is there a way to pass an array to a method that takes in a variable length parameters?
假设我有一个要调用的方法,它来自第三方库,因此我无法更改其签名:
void PrintNames(params string[] names)
我正在写这种方法,需要调用PrintNames
:
void MyPrintNames(string[] myNames) {
// How do I call PrintNames with all the strings in myNames as the parameter?
}
我会尝试
PrintNames(myNames);
您将知道是否可以查看MSDN上的规范: http : //msdn.microsoft.com/zh-cn/library/w5zay9db.aspx
他们非常清楚地展示了它-请注意示例代码中的注释:
// An array argument can be passed, as long as the array
// type matches the parameter type of the method being called.
当然。 编译器会将多个参数转换成一个数组,或者只是让您直接传递一个数组。
public class Test
{
public static void Main()
{
var b = new string[] {"One", "Two", "Three"};
Console.WriteLine(Foo(b)); // Call Foo with an array
Console.WriteLine(Foo("Four", "Five")); // Call Foo with parameters
}
public static int Foo(params string[] test)
{
return test.Length;
}
}
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