此方法用于获得将指定的十进制值乘以负1的结果。
Syntax: public static decimal Negate (decimal a);
Parameter:
a: This parameter specifies the decimal which will be converted.
Return Value: A decimal number with the value of a, but the opposite sign. But zero, if a is zero.
下面的程序说明了Decimal.Negate(Decimal)方法的用法：
示例1：当a为正时
// C# program to demonstrate the
// Decimal.Negate(Decimal) Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
// Declaring the decimal variable
Decimal a = 127.97m;
// using Negate() method;
Decimal value = Decimal.Negate(a);
// Display the negative value
Console.WriteLine("The negative value "+
"is : {0}", value);
}
}
输出：
The negative value is : -127.97
示例2：当a为负数时
// C# program to demonstrate the
// Decimal.Negate(Decimal) Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
// Declaring the decimal variable
Decimal a = -12.39m;
// using Negate() method;
Decimal value = Decimal.Negate(a);
// Display the value after
// using negate method
Console.WriteLine("The value is : {0}",
value);
}
}
输出：
The value is : 12.39
示例3：如果a为零。
// C# program to demonstrate the
// Decimal.Negate(Decimal) Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
// Declaring the decimal variable
Decimal a = 0.00m;
// using Negate() method;
Decimal value = Decimal.Negate(a);
// Display the Negate value
Console.WriteLine("The Negate value "+
"is : {0}", value);
}
}
输出：
The Negate value is : 0.00
参考：
- https://docs.microsoft.com/zh-cn/dotnet/api/system.decimal.negate?view=netframework-4.7.2