代码如下：include <stdio.h> int main(){ printf("输出水仙花数：\n");int i=100;for( ; i<1000; i++){ int num_0 = i%10;int num_1 = i/10%10;int num_2 = i/10/10%10;if(i==(num_0*num_0*num_0+num_1*num_1*num_1+num_2*num_2*num_2))printf("%d\t", i...
include <stdio.h> include <stdlib.h> include <windows.h> int main () { int t1=500,t05=250,t15=750;Beep(523,t1);Beep(587,t1);Beep(659,t1);Beep(698,t1);Beep(784,t1);Beep(880,t1);Beep(980,t1);Beep(1060,t1);Sleep(t1);Beep(523,t05);Beep(587,t05);Beep(659,t05...
注意行末不要有空格 输出图示如下： c00 c01 c02 c03 c04 c10 c11 c12 c13 c14 c20 c21 c22 c23 c24 c30 c31 c32 c33 c34 include<stdio.h>#include<stdlib.h> int main() { int x1,y1,x2,y2; int **a, **b, **c; int i,j,k; printf("intput x1,y1："); ...
程序如下（没考虑4个象限）：include<stdio.h>include<stdlib.h>include<math.h>void main(){double r1,r2;double R=5.0, ang=1.05;double Bx,By,P1x,P1y,P2x,P2y,l1,l2,L;double x3=1,y3=3,x4=8,y4=10;double ang3,ang4;ang3 = atan(y3/x3);ang4 = atan(y4/x4);printf...
按运算规律进行推算，都是比结果少1；头大了。include <stdio.h>#include <stdlib.h>int main(){int i=1;//int a,b;printf("i=%d\n",i);printf("(++i)=%d\n",++i);printf("i=%d\n",i);printf("(++i)+(++i)=%d\n",(++i)+(++i));printf("i=%d\n",i);printf("a=...
这个题目还是不错的，比较考程序流程和函数的使用，我写了一个大概的样子。你看看有没有问题，有不懂的，请追问：include <stdio.h>#include <conio.h>#include <stdlib.h>#include <time.h>#include <math.h>typedef struct // 定义结构体存储随机操作数{ int a; int b;}RandNum; // ...
3、一些多于的头文件和多余代码，我也把它去掉。了 正确的代码如下：include <stdio.h> include <stdlib.h> include <time.h> int main(int argc, char* argv[]){ long len,i;if(argc != 2){ printf("Error command!\n");return -1;} FILE *fp = fopen(argv[1], "r+");if(fp...
include "stdio.h"#include "stdlib.h"#include "time.h"int main(void){srand((unsigned)time(NULL)); int a;a=rand()%10;printf("%d\n",a);}加一句srand((unsigned)time(NULL)); 打开随机触发器 与时钟频率同步 这样每次随机的数就不同 不过需要包含头文件 #include "time.h"include...
system(系统)函数 windows操作系统下system () 函数详解（主要是在C语言中的应用）功 能： 发出一个DOS命令 用 法： int system(char *command);system函数已经被收录在标准c库中，可以直接调用 程序例：include <stdlib.h> include <stdio.h> int main(void){ printf("About to spawn and run ...
例子如下：test1.c include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <netinet/in.h> #include <arpa/inet.h> int main(void) { //create socket int fd = socket(AF_INET, SOCK_DGRAM, 0); if(fd==-1) { perror("socket\n"); ...