要比较ValueTuple的两个实例,可以使用ValueTuple结构提供的CompareTo方法。 ValueTuple.CompareTo(ValueTuple)方法用于将ValueTuple的当前实例与另一个ValueTuple实例进行比较。如果它们彼此相等,则始终返回零。
句法:
public int CompareTo (ValueTuple other);
在这里,另一个是要与当前实例进行比较的对象。
返回:该方法始终返回System.Int32类型的0。
异常:如果另一个不是ValueTuple实例,则此方法将引发ArgumentException。
范例1:
// C# program to illustrate the
// concept of CompareTo method
using System;
class GFG {
// Main method
static public void Main()
{
// Creating value tuples with two elements
var MyTple1 = ValueTuple.Create(56, 45);
var MyTple2 = ValueTuple.Create(56, 3);
var MyTple3 = ValueTuple.Create(56, 45);
var MyTple4 = ValueTuple.Create(5345, 45);
// Using CompareTo method
int res1 = MyTple1.CompareTo(MyTple2);
int res2 = MyTple1.CompareTo(MyTple3);
int res3 = MyTple1.CompareTo(MyTple4);
// Display result
Console.WriteLine("Result 1: " + res1);
Console.WriteLine("Result 2: " + res2);
Console.WriteLine("Result 3: " + res3);
}
}
输出:
Result 1: 1
Result 2: 0
Result 3: -1
范例2:
// C# program to illustrate the
// use of CompareTo method
using System;
class GFG {
// Main Method
static public void Main()
{
// Creating value tuples with one element
var MyVTple1 = ValueTuple.Create(2018);
var MyVTple2 = ValueTuple.Create(2018);
// Compare both value tuples
// Using CompareTo method
if (MyVTple1.CompareTo(MyVTple2) == 0)
{
Console.WriteLine("Welcome to GeeksforGeeks");
}
else
{
Console.WriteLine("Page Not Found");
}
}
}
输出:
Welcome to GeeksforGeeks
参考:
- https://docs.microsoft.com/zh-cn/dotnet/api/system.valuetuple.compareto?view=netframework-4.8