C# |如何获取元组的第一个元素？
Tuple 是一种数据结构，它为您提供了最简单的方法来表示具有多个值的数据集，这些值可能彼此相关，也可能彼此不相关。 Item1 属性用于获取给定元组的第一个元素。它适用于每个元组，如 1 元组、2 元组等。
语法:
public T1 Item1 { get; }
这里， T1 是当前 Tuple < >对象的第一个分量的值。这个元组< >可以是 1 元组、2 元组、3 元组、4 元组、5 元组、6 元组、7 元组或 8 元组。
示例:在下面的代码中，可以看到我们正在访问每个元组的第一个元素。
// C# program to illustrate how to get
// the first element of the tuple
using System;
class GFG {
// Main method
static public void Main()
{
// Taking 1-tuple
var st1 = Tuple.Create("Mohan");
Console.WriteLine("Student-1 Name: " + st1.Item1);
// Taking 2-tuple
var st2 = Tuple.Create("Sohan", 20);
Console.WriteLine("Student-2 Name: " + st2.Item1);
// Taking 3-tuple
var st3 = Tuple.Create("Soniya", 30, "CSE");
Console.WriteLine("Student-3 Name: " + st3.Item1);
// Taking 4-tuple
var st4 = Tuple.Create("Rohan", 29, "CSE", 2015);
Console.WriteLine("Student-4 Name: " + st4.Item1);
// Taking 5-tuple
var st5 = Tuple.Create("Siya", 22, "CSE", 2017,
"20-Mar-1993");
Console.WriteLine("Student-5 Name: " + st5.Item1);
// Taking 6-tuple
var st6 = Tuple.Create("Riya", 24, "CSE", 2015,
"30-May-2015", 230134832);
Console.WriteLine("Student-6 Name: " + st6.Item1);
// Taking 7-tuple
var st7 = Tuple.Create("Rohit", 21, "CSE", 2017,
"21-Apr-1998", 384749829, 20000);
Console.WriteLine("Student-7 Name: " + st7.Item1);
// Taking 8-tuple
var st8 = Tuple.Create("Manita", 24, "CSE", 2016,
"03-Aug-1991", 235678909, 34000, "C#");
Console.WriteLine("Student-8 Name: " + st8.Item1);
}
}
Output:
Student-1 Name: Mohan
Student-2 Name: Sohan
Student-3 Name: Soniya
Student-4 Name: Rohan
Student-5 Name: Siya
Student-6 Name: Riya
Student-7 Name: Rohit
Student-8 Name: Manita
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