C＃| Int32结构

在C＃中，Int32 Struct表示从-2,147,483,648到+2,147,483,647范围的32位有符号整数(也称为int数据类型)。它还提供了不同类型的方法来执行各种操作。您可以对Int32类型执行数学运算，例如加法，减法，乘法等。它支持AND，OR，XOR等按位运算。它完全支持标准和自定义数字格式字符串。您可以调用Convert和Math类的方法来对Int32值执行操作。 Int32结构继承了ValueType类，而ValueType类继承了Object类。

领域

Fields	Description
MaxValue	This field is used to represent the largest possible value of an Int32. This field is constant.
MinValue	This field is used to represent the smallest possible value of Int32. This field is constant.

例子：

// C# program to illustrate the 
// MaxValue and MinValue field
using System;
  
class GFG {
  
    // Main method
    static public void Main()
    {
        Int32 var1 = 34;
        Int32 var2 = 30;
        Int32 var3 = 59;
  
        // Get the Maximum and Minimum value 
        // of Int32 type Using MaxValue and 
        // MinValue field
        Console.WriteLine("Value 1: {0}", var1);
        Console.WriteLine("Value 2: {0}", var2);
        Console.WriteLine("Value 3: {0}", var3);
  
        Console.WriteLine("Maximum Value: {0}",
                               Int32.MaxValue);
  
        Console.WriteLine("Minimum Value: {0}",
                               Int32.MinValue);
    }
}

输出：

Value 1: 34
Value 2: 30
Value 3: 59
Maximum Value: 2147483647
Minimum Value: -2147483648

方法

Method	Description
CompareTo()	This method is used to compare this instance to a specified object or Int32 and returns an indication of their relative values.
Equals()	This method is used to return a value indicating whether this instance is equal to a specified object or Int32.
GetHashCode()	This method is used to return the hash code for this instance.
GetTypeCode()	This method is used to return the TypeCode for value type Int32.
Parse()	This method is used to convert the string representation of a number to its 32-bit signed integer equivalent.
ToString()	This method is used to convert the numeric value of this instance to its equivalent string representation.
TryParse()	This method is used to convert the string representation of a number to its 32-bit signed integer equivalent. A return value indicates whether the operation succeeded.

范例1：

// C# program to demonstrate the 
// Int32.Equals(Object) Method 
using System; 
using System.Globalization; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // Declaring and initializing value1 
        int value1 = 70; 
  
        // Declaring and initializing value2 
        object value2 = 89; 
  
        // using Equals(object) method 
        bool status = value1.Equals(value2); 
  
        // checking the status 
        if (status) 
            Console.WriteLine("{0} is equal to {1}", 
                                value1, value2); 
        else
            Console.WriteLine("{0} is not equal to {1}", 
                            value1, value2); 
    } 
} 

输出：

70 is not equal to 89

范例2：

// C# program to illustrate the 
// GetTypeCode() method
using System;
  
class GFG {
  
    // Main method
    static public void Main()
    {
        Int32 var1 = 100;
        Int32 var2 = 403;
        Int32 var3 = 503;
  
        // Get the type code of
        // all the variables
        // Using GetTypeCode() method
        Console.WriteLine("Get the type code of var1: {0}",
                                       var1.GetTypeCode());
  
        Console.WriteLine("Get the type code of var2: {0}",
                                       var2.GetTypeCode());
  
        Console.WriteLine("Get the type code of var3: {0}",
                                       var3.GetTypeCode());
    }
}

输出：

Get the type code of var1: Int32
Get the type code of var2: Int32
Get the type code of var3: Int32

参考：

• https://docs.microsoft.com/zh-cn/dotnet/api/system.int32?view=netframework-4.7.2