【地方招聘网站源码】【asp扫码源码】【idea商城项目源码】下载sscanf源码

【地方招聘网站源码】【asp扫码源码】【idea商城项目源码】下载sscanf源码_sspanel源码

2024-11-26 12:00:14 来源：微信发红包程序源码分类：知识

1.çº¯Cè¯è¨å®ç°å¾åå¤çï¼
2.如何用C语言实现atoi()函数
3.linux下socket 网络编程(客户端向服务器端发送文件) 求源代码大哥大姐帮帮忙。下载。源码l源谢谢
4.C/C++编程笔记：如何将C ++字符串转换为数字？三种方法教给你

下载sscanf源码_sspanel源码

çº¯Cè¯è¨å®ç°å¾åå¤çï¼

#include <stdio.h>

#include <stdlib.h>

#include <conio.h>

#define ONE

#define ZERO 0

typedef struct tagBITMAPFILEHEADER { // bmfh

WORD bfType;

DWORD bfSize;

WORD bfReserved1;

WORD bfReserved2;

DWORD bfOffBits;

} BITMAPFILEHEADER;

typedef struct tagBITMAPINFOHEADER{ // bmih

DWORD biSize;

LONG biWidth;

LONG biHeight;

WORD biPlanes;

WORD biBitCount

DWORD biCompression;

DWORD biSizeImage;

LONG biXPelsPerMeter;

LONG biYPelsPerMeter;

DWORD biClrUsed;

DWORD biClrImportant;

} BITMAPINFOHEADER;

void main (int argc,下载char *argv[])

{

FILE *fi,*fo;//I/O file

char fin[],fon[];//I/O file name

unsigned char **ri,**ro;

unsigned char buff;

long w,h;

int t;

int i,j;

if(argc<3)

{

printf("orginfile name:");

scanf("%s",fin);

printf("resultfile name:");

scanf("%s",fon);

}else{

sscanf(argv[1],"%s",fin);

sscanf(argv[2],"%s",fon);

}

if(argc==4)

sscanf(argv[4],"%d",&t);

else{

printf("theshold [0,]:");

scanf("%d",&t);

}

if (((fi=fopen(fin,"rb"))==NULL)||((fo=fopen(fon,"wb"))==NULL))

{

puts("\nfile open failed");

return;

}

fseek(fi,L,SEEK_SET);

fread(&w,sizeof(long),1,fi);

fread(&h,sizeof(long),1,fi);

fseek(fi,0L,SEEK_SET);

ri=(unsigned char **)malloc(sizeof(unsigned *)*h);

for (i=0;i<h;i++)

*(ri+i)=(unsigned char *)malloc(sizeof(unsigned)*w);

ro=(unsigned char **)malloc(sizeof(unsigned *)*h);

for (i=0;i<h;i++)

*(ro+i)=(unsigned char *)malloc(sizeof(unsigned)*w);

//åéå¤±è´¥åæèªè´!

for (i=0;i<;i++){

fread(&buff,sizeof(buff),1,fi);

fwrite(&buff,sizeof(buff),1,fo);}

for (i=0;i<h;i++)

for (j=0;j<w;j++)

fread(*(ri+i)+j,sizeof(unsigned char),1,fi);

for (i=0;i<h;i++)

for (j=0;j<w;j++)

*(*(ro+i)+j)=((*(*(ri+i)+j)<=t)?ZERO:ONE);

for (i=0;i<h;i++)

for (j=0;j<w;j++)

fwrite(*(ro+i)+j,sizeof(unsigned char),1,fo);

fclose(fo);

}

如何用C语言实现atoi()函数

用标准函数 sscanf 就可以了。

long my_atoi(char *str){

long i;

sscanf(str,源码l源"%ld",&i);

return i;

}

字符常量调用：

printf("%d %d",my_atoi("-"), my_atoi(""));

字符变量调用:

char a[]="-";

int k;

k = my_atoi(a);

---------------------------

考究一点,函数里加一个转换错误检查：

if ( sscanf(str,"%ld",&i) != 1) { printf("Covertion error in my_atoi !"); ....};

linux下socket 网络编程(客户端向服务器端发送文件) 求源代码大哥大姐帮帮忙。。下载谢谢

server:

#include <stdio.h>

#include <errno.h>

#include <unistd.h>

#include <signal.h>

#include <stdlib.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <arpa/inet.h>

#include <netinet/in.h>

#include <syslog.h>

#include <sys/time.h>

#include <string.h>

#include <fcntl.h>

#include <sys/wait.h>

#define MAXDATASIZE

#define SERVPORT

#define BACKLOG

int SendFileToServ(const char *path,源码l源地方招聘网站源码 const char *FileName, const char *ip)

{

#define PORT

int sockfd;

int recvbytes;

char buf[MAXDATASIZE];

char send_str[MAXDATASIZE];

char filepath[] = { 0};

struct sockaddr_in serv_addr;

FILE *fp;

sprintf(filepath, "%s%s", path, FileName);

if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1)

{

perror("socket");

return 1;

}

bzero(&serv_addr,sizeof(struct sockaddr_in));

serv_addr.sin_family=AF_INET;

serv_addr.sin_port=htons(PORT);

inet_aton(ip, &serv_addr.sin_addr);

int IErrCount = 0;

again:

if(connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(struct sockaddr))==-1)

{

if (5 == IErrCount)

return 1;

IErrCount++;

perror("connect");

sleep(2);

goto again;

}

//if ((fp = fopen(FileName, "rb")) == NULL)

if ((fp = fopen(filepath, "rb")) == NULL)

{

perror("fopen ");

return 1;

}

recvbytes = write(sockfd, FileName, strlen(FileName));

recvbytes = read(sockfd, buf, MAXDATASIZE);

if (!memcmp(buf, "sendmsg", 7))

{

while(fgets(send_str, MAXDATASIZE, fp))

{

recvbytes = write(sockfd, send_str, strlen(send_str));

recvbytes = read(sockfd, buf, MAXDATASIZE);

if (recvbytes <= 0)

{

fclose(fp);

close(sockfd);

return 1;

}

if (memcmp(buf, "goon", 4))

{

fclose(fp);

close(sockfd);

return 1;

}

recvbytes = write(sockfd, "end", 3);

}

else

{

fclose(fp);

close(sockfd);

return 1;

}

memset(buf, 0, MAXDATASIZE);

if (read(sockfd, buf, MAXDATASIZE) <= 0)

{

close(sockfd);

return 2;

}

char *Eptr = "nginx reload error";

//printf("bf[%s]\n", buf);

int ret;

ret = strncmp(buf, Eptr, strlen(Eptr));

//printf("%d\n", ret);

if (!ret)

{

close(sockfd);

return 2;

}

close(sockfd);

return 0;

}

int mysyslog(const char * msg)

{

FILE *fp;

if ((fp = fopen("/tmp/tmp.log", "a+")) == NULL)

{

return 0;

}

fprintf(fp, "[%s]\n", msg);

fclose(fp);

return 0;

}

static void quit_handler(int signal)

{

kill(0, SIGUSR2);

syslog( LOG_NOTICE, "apuserv quit...");

// do something exit thing ,such as close socket ,close mysql,free list

// .....

//i end

exit(0);

}

static int re_conf = 0;

static void reconf_handler(int signal)

{

re_conf=1;

syslog(LOG_NOTICE,"apuserv reload configure file .");

// 请在循环体中判断，如果re_conf == 1，下载请再次加载配置文件。源码l源

}

static int isrunning(void)

{

int fd;

int ret;

struct flock lock;

lock.l_type = F_WRLCK;

lock.l_whence = 0;

lock.l_start = 0;

lock.l_len = 0;

const char *lckfile = "/tmp/apuserv.lock";

fd = open(lckfile,下载O_WRONLY|O_CREAT);

if (fd < 0) {

syslog(LOG_ERR,"can not create lock file: %s\n",lckfile);

return 1;

}

if ((ret = fcntl(fd,F_SETLK,&lock)) < 0) {

ret = fcntl(fd,F_GETLK,&lock);

if (lock.l_type != F_UNLCK) {

close(fd);

return lock.l_pid;

}

else {

fcntl(fd,F_SETLK,&lock);

}

return 0;

}

int MyHandleBuff(const char *buf, char *str, char *FileName, char *pth)

{

sscanf(buf, "%s %s %s", pth, FileName, str);

printf("path=%s\nfilename=%s\nip=%s\n", pth, FileName, str);

return 0;

}

int main(int argc, char **argv)

{

int sockfd,client_fd;

socklen_t sin_size;

struct sockaddr_in my_addr,remote_addr;

char buff[MAXDATASIZE];

int recvbytes;

#if 1

int pid ;

char ch ;

int ret;

int debug = 0;

signal(SIGUSR1, SIG_IGN);

signal(SIGUSR2, SIG_IGN);

signal(SIGHUP, SIG_IGN);

signal(SIGTERM, quit_handler);

syslog(LOG_NOTICE,"apuserver start....");

while ((ch = getopt(argc, argv, "dhV")) != -1) {

switch (ch) {

case 'd':

debug = 1;

break;

case 'V':

printf("Version:%s\n","1.0.0");

return 0;

case 'h':

printf(" -d use daemon mode\n");

printf(" -V show version\n");

return 0;

default:

printf(" -d use daemon mode\n");

printf(" -V show version\n");

}

if (debug && daemon(0,0 ) ) {

return -1;

}

if (isrunning()) {

fprintf(stderr, "apuserv is already running\n");

syslog(LOG_INFO,"apuserv is already running\n");

exit(0);

}

while (1) {

pid = fork();

if (pid < 0)

return -1;

if (pid == 0)

break;

while ((ret = waitpid(pid, NULL, 0)) != pid) {

syslog(LOG_NOTICE, "waitpid want %d, but got %d", pid, ret);

if (ret < 0)

syslog(LOG_NOTICE, "waitpid errno:%d", errno);

}

kill(0, SIGUSR2);

sleep(1);

syslog(LOG_NOTICE,"restart apuserver");

}

signal(SIGHUP, reconf_handler);

signal(SIGPIPE, SIG_IGN);

signal(SIGUSR1,SIG_IGN);

signal(SIGUSR2, SIG_DFL);

signal(SIGTERM, SIG_DFL);

#endif

if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1)

{

perror("socket");

exit(1);

}

bzero(&my_addr,sizeof(struct sockaddr_in));

my_addr.sin_family=AF_INET;

my_addr.sin_port=htons(SERVPORT);

my_addr.sin_addr.s_addr = htonl(INADDR_ANY);

if(bind(sockfd,(struct sockaddr *)&my_addr,sizeof(struct sockaddr))==-1)

{

perror("bind");

exit(1);

}

if(listen(sockfd,BACKLOG)==-1)

{

perror("listen");

exit(1);

}

int nret;

while(1)

{

sin_size = sizeof(struct sockaddr_in);

if((client_fd = accept(sockfd, (struct sockaddr *)&remote_addr, &sin_size))==-1)

{

perror("falied accept");

continue;

}

memset(buff, 0, MAXDATASIZE);

recvbytes = read(client_fd, buff, MAXDATASIZE);

char str[] = { 0};

char FileName[] = { 0};

char path[] = { 0};

MyHandleBuff(buff, str, FileName, path);

if (recvbytes > 0)

{

nret = SendFileToServ(path, FileName, str);

printf("nret[%d]\n", nret);

if (1 == nret)

write(client_fd, "send file error", );

else if(2 == nret)

write(client_fd, "reload nginx error", );

else

write(client_fd, "succ", 4);

}

close(client_fd);

}

_________________________________________________

client:

#include <stdio.h>

#include <errno.h>

#include <unistd.h>

#include <signal.h>

#include <stdlib.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <arpa/inet.h>

#include <netinet/in.h>

#include <syslog.h>

#include <sys/time.h>

#include <string.h>

#include <fcntl.h>

#include <sys/wait.h>

#define MAXDATASIZE

#define SERVPORT

#define BACKLOG

int mysyslog(const char * msg)

{

FILE *fp;

if ((fp = fopen("/tmp/tmp.log", "a+")) == NULL)

{

return 0;

}

fprintf(fp, "[%s]\n", msg);

fclose(fp);

return 0;

}

static void quit_handler(int signal)

{

kill(0, SIGUSR2);

syslog( LOG_NOTICE, "apuserv quit...");

// do something exit thing ,such as close socket ,close mysql,free list

// .....

//i end

exit(0);

}

static int re_conf = 0;

static void reconf_handler(int signal)

{

re_conf=1;

syslog(LOG_NOTICE,"apuserv reload configure file .");

// ·1nf == 1￡′μ?

static int isrunning(void)

{

int fd;

int ret;

struct flock lock;

lock.l_type = F_WRLCK;

lock.l_whence = 0;

lock.l_start = 0;

lock.l_len = 0;

const char *lckfile = "/tmp/dstserver.lock";

fd = open(lckfile,O_WRONLY|O_CREAT);

if (fd < 0) {

syslog(LOG_ERR,"can not create lock file: %s\n",lckfile);

return 1;

}

if ((ret = fcntl(fd,F_SETLK,&lock)) < 0) {

ret = fcntl(fd,F_GETLK,&lock);

if (lock.l_type != F_UNLCK) {

close(fd);

return lock.l_pid;

}

else {

fcntl(fd,F_SETLK,&lock);

}

return 0;

}

int main(int argc, char **argv)

{

int sockfd,client_fd;

socklen_t sin_size;

struct sockaddr_in my_addr,remote_addr;

char buff[MAXDATASIZE];

int recvbytes;

#if 1

int pid ;

char ch ;

int ret;

int debug = 0;

signal(SIGUSR1, SIG_IGN);

signal(SIGUSR2, SIG_IGN);

signal(SIGHUP, SIG_IGN);

signal(SIGTERM, quit_handler);

syslog(LOG_NOTICE,"dstserver start....");

while ((ch = getopt(argc, argv, "dhV")) != -1) {

switch (ch) {

case 'd':

debug = 1;

break;

case 'V':

printf("Version:%s\n","1.0.0");

return 0;

case 'h':

printf(" -d use daemon mode\n");

printf(" -V show version\n");

return 0;

default:

printf(" -d use daemon mode\n");

printf(" -V show version\n");

}

if (debug && daemon(0,0 ) ) {

return -1;

}

if (isrunning()) {

fprintf(stderr, "dstserver is already running\n");

syslog(LOG_INFO,"dstserver is already running\n");

exit(0);

}

while (1) {

pid = fork();

if (pid < 0)

return -1;

if (pid == 0)

break;

while ((ret = waitpid(pid, NULL, 0)) != pid) {

syslog(LOG_NOTICE, "waitpid want %d, but got %d", pid, ret);

if (ret < 0)

syslog(LOG_NOTICE, "waitpid errno:%d", errno);

}

kill(0, SIGUSR2);

sleep(1);

syslog(LOG_NOTICE,"restart apuserver");

}

signal(SIGHUP, reconf_handler);

signal(SIGPIPE, SIG_IGN);

signal(SIGUSR1,SIG_IGN);

signal(SIGUSR2, SIG_DFL);

signal(SIGTERM, SIG_DFL);

#endif

if((sockfd=socket(AF_INET,SOCK_STREAM,0))==-1)

{

perror("socket");

exit(1);

}

bzero(&my_addr,sizeof(struct sockaddr_in));

my_addr.sin_family=AF_INET;

my_addr.sin_port=htons(SERVPORT);

my_addr.sin_addr.s_addr = htonl(INADDR_ANY);

if(bind(sockfd,(struct sockaddr *)&my_addr,sizeof(struct sockaddr))==-1)

{

perror("bind");

exit(1);

}

if(listen(sockfd,BACKLOG)==-1)

{

perror("listen");

exit(1);

}

char filepath[MAXDATASIZE]= { 0};

FILE *fp;

while(1)

{

sin_size = sizeof(struct sockaddr_in);

if((client_fd = accept(sockfd, (struct sockaddr *)&remote_addr, &sin_size))==-1)

{

perror("falied accept");

continue;

}

memset(buff, 0, MAXDATASIZE);

recvbytes = read(client_fd, buff, MAXDATASIZE);

sprintf(filepath, "/etc/nginx/url_rule/%s", buff);

if ((fp = fopen(filepath, "wb")) == NULL)

{

perror("fopen");

close(client_fd);

continue;

}

write(client_fd, "sendmsg", 7);

while(read(client_fd, buff, MAXDATASIZE))

{

if (!memcmp(buff, "end", 3))

{

fclose(fp);

break;

}

else

{

fprintf(fp, "%s", buff);

write(client_fd, "goon", 4);

}

//system("nginx -s reload");

char *Sptr = "nginx reload succ";

char *Eptr = "nginx reload error";

int ret;

ret = system("nginx -s reload");

printf("ret[%d]\n", ret);

if (ret != 0)

{

write(client_fd, Eptr, strlen(Eptr));

}

else

{

write(client_fd, Sptr, strlen(Sptr));

}

close(client_fd);

}

以前写的：内容忘记了。不是源码l源很复杂你可以自己看！

C/C++编程笔记：如何将C ++字符串转换为数字？三种方法教给你

在编程中，下载将字符串转换为数字是源码l源一个常见需求。本文将介绍三种有效方法，下载asp扫码源码帮助您轻松实现这一目标。源码l源

首先，下载您可以使用字符串流类或sscanf()函数来完成字符串到数字的转换。通过这种方法，您能从字符串中重建数字。

另一种方法是idea商城项目源码使用to_string()函数，它接受一个数字（可以是任何数据类型）并以所需字符串形式返回该数字。借助此函数，您可轻松实现数字与字符串之间的转换。

第三种方法是借助Boost库中的lexical_cast()函数。只需将字符串作为参数传递，函数将自动转换为数字类型。jsd云控源码若输入无效，将返回异常“bad_lexical_cast”。这种方法提供了强大的灵活性和安全性。

让我们看几个示例：

使用字符串流类或sscanf()，数字从字符串""中重建。

通过to_string()函数，hmc830源码整数""和浮点数"."被转换为字符串。

使用Boost库的lexical_cast()函数，字符串".5"转换为浮点值，而""转换为整数。

掌握这些技巧后，您的编程能力将得到显著提升。不要忘记学习C语言和C++编程，以提高技能并快速进步。加入C语言C++编程学习交流圈子，探索更多资源和学习路径。分享编程学习资料，包括源码、项目实战视频、项目笔记和基础入门教程。无论您是转行学习编程的伙伴，还是寻求加速成长的开发者，这里都是您获取更多学习资源和指导的地方。让我们一起通过更丰富的资料学习和成长，快速提升编程技能。

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【地方招聘网站源码】【asp扫码源码】【idea商城项目源码】下载sscanf源码_sspanel源码

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