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2023-12-01

下表显示了C语言支持的所有算术运算符。假设变量A保持10，变量B保持20，则 -

操作者	描述	例
+	添加两个操作数。	A + B = 30
−	从第一个减去第二个操作数。	A - B = -10
*	将两个操作数相乘。	A * B = 200
/	Divides numerator by de-numerator.	B/A = 2
%	模数运算符和整数除法后的余数。	B％A = 0
++	递增运算符将整数值增加1。	A ++ = 11
--	递减运算符将整数值减1。	A-- = 9

例子 (Example)

尝试以下示例来了解C中可用的所有算术运算符 -

#include <stdio.h>
main() {
   int a = 21;
   int b = 10;
   int c ;
   c = a + b;
   printf("Line 1 - Value of c is %d\n", c );
   c = a - b;
   printf("Line 2 - Value of c is %d\n", c );
   c = a * b;
   printf("Line 3 - Value of c is %d\n", c );
   c = a/b;
   printf("Line 4 - Value of c is %d\n", c );
   c = a % b;
   printf("Line 5 - Value of c is %d\n", c );
   c = a++; 
   printf("Line 6 - Value of c is %d\n", c );
   c = a--; 
   printf("Line 7 - Value of c is %d\n", c );
}

编译并执行上述程序时，会产生以下结果 -

Line 1 - Value of c is 31
Line 2 - Value of c is 11
Line 3 - Value of c is 210
Line 4 - Value of c is 2
Line 5 - Value of c is 1
Line 6 - Value of c is 21
Line 7 - Value of c is 22