Int64。C# 中的方法与示例的比较
原文:https://www . geeksforgeeks . org/int 64-compare to-method-in-c-sharp-with-examples/
Int64。CompareTo 方法用于将当前实例与指定的对象或 Int64 进行比较，并返回它们相对值的符号。此方法的重载列表中有 2 种方法，如下所示:
-
比较(Int64)方法 *CompareTo(Object) Method
Int64。比较(Int64)方法
此方法用于将当前实例与指定的 64 位有符号整数进行比较，并返回它们的相对值的符号。
语法:
cs public int CompareTo (long value);这里，需要整数来比较。
返回值:返回一个 32 位有符号数，表示当前实例和值参数的相对值，如下所示:
- 小于零:如果当前实例<值
- 如果当前实例=值，则为零:
- 大于零:如果当前实例>值
以下程序说明了上述方法的使用:
例 1:
```cs // C# program to demonstrate the // Int64.CompareTo(Int64) Method using System;
class GFG {
// Main Method public static void Main() {
// Declaring and initializing value1 long value1 = 10;
// Declaring and initializing value2 long value2 = 20;
// compare both Int64 value // using CompareTo() method int status = value1.CompareTo(value2);
// checking the status if (status > 0) Console.WriteLine("{0} is greater than {1}", value1, value2); else if (status < 0) Console.WriteLine("{0} is less than {1}", value1, value2); else Console.WriteLine("{0} is equal to {1}", value1, value2); } } ```
Output:
```cs 10 is less than 20
```
例 2:
```cs // C# program to demonstrate the // Int64.CompareTo(Int64) Method using System;
class GFG {
// Main Method public static void Main() { // calling get() method get(5, 7); get(3025, 3025); get(10, 20); get(7, -12); }
// defining get() method public static void get(long value1, long value2) {
// using CompareTo() method int status = value1.CompareTo(value2);
// checking the status if (status > 0) Console.WriteLine("{0} is greater than {1}", value1, value2); else if (status < 0) Console.WriteLine("{0} is less than {1}", value1, value2); else Console.WriteLine("{0} is equal to {1}", value1, value2); } } ```
Output:
```cs 5 is less than 7 3025 is equal to 3025 10 is less than 20 7 is greater than -12
```
Int64。比较对象方法
此方法用于将当前实例与指定对象进行比较，并返回其相对值的符号。
语法:
cs public int CompareTo (object value);这里，它需要一个对象进行比较，或者为 null。
返回值:返回一个 32 位有符号数，表示当前实例和值参数的相对值，如下所示:
- 小于零:如果当前实例<值
- 零:如果当前实例=值
- 大于零:如果当前实例>值或值为空。
异常:如果值不是 Int64，则抛出参数异常。
以下程序说明了上述方法的使用:
例 1:
```cs // C# program to demonstrate the // Int64.CompareTo(object) Method using System;
class GFG {
// Main Method public static void Main() { try {
// Declaring and initializing value1 long value1 = 10;
// Declaring and initializing value2 object value2 = (long)5689412587;
// using CompareTo() method int status = value1.CompareTo(value2);
// checking the status if (status > 0) Console.WriteLine("{0} is greater than {1}", value1, value2);
else if (status < 0) Console.WriteLine("{0} is less than {1}", value1, value2); else Console.WriteLine("{0} is equal to {1}", value1, value2); }
catch (ArgumentException e) { Console.WriteLine("value2 must be Int64"); Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } } } ```
Output:
```cs 10 is less than 5689412587
```
示例 2: 适用于参数异常
```cs // C# program to demonstrate the // Int64.CompareTo(object) Method using System; using System.Globalization;
class GFG {
// Main Method public static void Main() { try {
// Declaring and initializing value1 long value1 = 10;
// Declaring and initializing value2 object value2 = 1/3;
// using CompareTo() method int status = value1.CompareTo(value2);
// checking the status if (status > 0) Console.WriteLine("{0} is greater than {1}", value1, value2);
else if (status < 0) Console.WriteLine("{0} is less than {1}", value1, value2); else Console.WriteLine("{0} is equal to {1}", value1, value2); }
catch (ArgumentException e) { Console.WriteLine("value2 must be Int64"); Console.Write("Exception Thrown: "); Console.Write("{0}", e.GetType(), e.Message); } } } ```
Output:
```cs value2 must be Int64 Exception Thrown: System.ArgumentException
```
参考:
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