在 C# 中检查给定的索引是否相等
原文:https://www . geeksforgeeks . org/checking-给定的索引是否等于 c-sharp/
在 C# 8.0 中引入了索引结构。它表示可用于索引集合或序列的类型，并且可以从开始或结束开始。您可以通过索引结构提供的以下方法(相等方法)来比较两个索引是否相等:
1.等于(索引)
此方法返回一个值，该值显示给定对象等于另一个对象。如果返回 true，则当前对象等于另一个对象，如果返回 false，则当前对象不等于另一个对象，则结果为 bool 形式。
语法:
public virtual bool Equals(Index other);
示例:
// C# program to illustrate the
// concept of the Equals(index) method
using System;
namespace example {
class GFG {
// Main Method
static void Main(string[] args)
{
// Creating and initializing an array
string[] greetings = new string[] {"Hello", "Hola", "Namaste",
"Bonjour", "Ohayo", "Ahnyounghaseyo"};
// Get the end index
var res = Index.Start;
// Checking the given index
// is the start index or not
// Using Equals(index) method
if (res.Equals(0) == true) {
Console.WriteLine("The given index is start index"+
" and the element is " + greetings[res]);
}
else {
Console.WriteLine("The given index is not the start index ");
}
}
}
}
输出:
The given index is start index and the element is Hello
2.等于(对象)
此方法返回一个值，该值显示给定的索引对象等于另一个索引对象。如果返回 true，则当前索引对象等于另一个索引对象；如果返回 false，则当前索引对象不等于另一个索引对象，则结果为 bool 形式。
语法:
public override bool Equals(System::Object ^ value);
示例:
// C# program to illustrate the concept
// of the Equals(object) method
using System;
namespace example {
class GFG {
// Main Method
static void Main(string[] args)
{
// Creating and initializing an array
string[] greetings = new string[] {"Hello", "Hola", "Namaste",
"Bonjour", "Ohayo", "Ahnyounghaseyo"};
// Creating index
// Using Index() constructor
var val1 = new Index(1, true);
var val2 = new Index(2, false);
// Checking the given both the
// index values are equal or not
// Using Equals(object)
if (val1.Value.Equals(val2.Value) == true) {
Console.WriteLine("Both the indexes are equal and"+
" their elements are :{0}, {1}", greetings[val1],
greetings[val2]);
}
else {
Console.WriteLine("Both the indexes are not equal and"+
" their elements are: {0}, {1}", greetings[val1],
greetings[val2]);
}
}
}
}
输出:
Both the indexes are not equal and their elements are: Ahnyounghaseyo, Namaste
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