BigInteger.Subtract(BigInteger, BigInteger) 方法

定义

从另一个值中减去一个 BigInteger 值并返回结果。Subtracts one BigInteger value from another and returns the result.

public:
 static System::Numerics::BigInteger Subtract(System::Numerics::BigInteger left, System::Numerics::BigInteger right);
public static System.Numerics.BigInteger Subtract (System.Numerics.BigInteger left, System.Numerics.BigInteger right);
static member Subtract : System.Numerics.BigInteger * System.Numerics.BigInteger -> System.Numerics.BigInteger
Public Shared Function Subtract (left As BigInteger, right As BigInteger) As BigInteger

参数

left
BigInteger

要从中减去的值(被减数)。The value to subtract from (the minuend).

right
BigInteger

要减去的值(减数)。The value to subtract (the subtrahend).

返回

rightleft 所得的结果。The result of subtracting right from left.

注解

不支持自定义运算符的语言可以使用 Subtract 方法来使用 BigInteger 值执行减法运算。Languages that do not support custom operators can use the Subtract method to perform subtraction using BigInteger values.

在实例化 BigInteger 变量时,Subtract 方法对于减法运算符是一种有用的替代方法,这是通过将该变量的结果赋给该变量,如下面的示例中所示。The Subtract method is a useful substitute for the subtraction operator when instantiating a BigInteger variable by assigning it the difference that results from subtraction, as shown in the following example.

// The statement
//    BigInteger number = Int64.MinValue - Int64.MaxValue;
// produces compiler error CS0220: The operation overflows at compile time in checked mode.
// The alternative:
BigInteger number = BigInteger.Subtract(Int64.MinValue, Int64.MaxValue);     
' The statement
'    Dim number As BigInteger = Int64.MinValue - Int64.MaxValue
' produces compiler error BC30439: Constant expression not representable in type 'Long'.
' The alternative:
Dim number As BigInteger = BigInteger.Subtract(Int64.MinValue, Int64.MaxValue)

适用于

另请参阅