c語言中負數

C中的模數運算符(％)運算符 (The modulus operator (%) operator in C)

The modulus operator is an arithmetic operator in C language; it is a binary operator and works with two operands. It is used to find the remainder.

模運算符是C語言中的算術運算符； 它是一個二進制運算符，并且可以使用兩個操作數。 它用于查找余數。

Syntax:

句法：

operand1 % operand2;

It returns the remainder which comes after dividing operand1 by operand2.

它返回它來除以操作數由操作數后的余數。

Example:

例：

Input:int a = -10;int b = 3;// finding remainderresult = a%b;printf("result = %d\n", result);Output:result = -1

C code to demonstrate example of modulus operator with positive operands

C代碼演示具有正操作數的模運算符的示例

// C program to demonstrate example of // Modules operator (%)#include <stdio.h>int main() {int a = 10;int b = 3;int result;result = a%b;printf("result = %d\n", result);return 0; }

Output

輸出量

result = 1

負數的模運算符 (Modulus operator with negative numbers)

If we have negative numbers, the result will be based on the left operand's sign, if the left operand is positive – the result will be positive, and if the left operand is negative – the result will be negative.

如果我們有負數，則結果將基于左操作數的符號；如果左操作數為正-結果將為正；如果左操作數為負-結果將為負。

Thus, in the result (remainder), the sign of left operand is appended.

因此， 在結果(余數)中，將添加左操作數的符號 。

Understand with the below table:

了解下表：

Left operand Right operand Result Positive Positive PositivePositive Negative PositiveNegative Positive NegativeNegative Negative Negative

Example:

例：

Input:int a = -10;int b = 3;// finding remainderresult = a%b;printf("result = %d\n", result);Output:result = -1

C code to demonstrate example of modulus operator with negative operands

C代碼演示具有負操作數的模運算符的示例

// C program to demonstrate example of // Modules operator (%)#include <stdio.h>int main() {int a = -10;int b = 3;int result;result = a%b;printf("result = %d\n", result);a = 10;b = -3;result = a%b;printf("result = %d\n", result); a = -10;b = -3;result = a%b;printf("result = %d\n", result); return 0; }

Output

輸出量

result = -1 result = 1 result = -1

翻譯自: https://www.includehelp.com/c/modulus-on-negative-numbers.aspx

c語言中負數

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