C 语言常用运算符

来源：互联网发布：淘宝店排名规则编辑：程序博客网时间：2024/06/06 00:46

1.数学运算符

#include <iostream>#include <math.h>#define M_PI 3.14159265int main() {    int32_t a = (10 + 2 - 8) * 9 / 3;    printf("%d\n", a);    printf("%f\n",sin(M_PI));    return 0;}

2.逻辑运算符

#include <stdint.h>#include <stdio.h>//    && 与  ||或 !非#define MALE 1#define FEMALE 2int main() {    int32_t score = 80;    if (score >= 60 &&        score <= 100) {        printf("OK\n");    } else {        printf("Fail or invalid score\n");    }    if (score < 60 ||        score > 100) {        printf("Fail or invalid score\n");    } else {        printf("OK\n");    }    int sex = MALE;    if (sex != FEMALE) {        printf("The person is male\n");    } else {        printf("The person is female\n");    }    return 0;}

3.位运算

#include <stdio.h>#include <stdint-gcc.h>/** * & 位与 * | 位或 * ~ 位反 * ^ 异或 * >> 右移 * << 左移 */int main() {    int a = 0b01;    int b = 0b10;    printf("位与:%d\n", a & b);    printf("位或:%d\n", a | b);    printf("异或:%d\n", a ^ b);    uint8_t c = 1;//0b00000001 求反 0b11111110    printf("%d\n", c);    c = ~c;    printf("位反:%d\n", c);    uint8_t d = 0b11111110;    printf("%d\n", d);    int8_t e = 1;//-128...-3,-2,-1,  中心   0,1,2.....-127    e = ~e;    printf("位反:%d\n", e);    int f = 8;    printf("右移:%d\n", f >> 1);    //提取颜色通道    uint32_t color = 0xFFFEFAFB;//ARGB(Alpha,Red,Green,Blue)    uint32_t tmp = color & 0x00FF0000;//0b11111110 & 0b11111111 = 0b11111110    // tmp  0x00000000 11111110 00000000 00000000    uint8_t red = tmp >> 16;    printf("%d\n",red);    return 0;}

0 0