学生成绩查询系统C语言代码(分服务器端和客户端).doc

客户端：#include#include#include #pragma comment(lib , Wsock32.lib ) #define MAX_PWD_LEN 32#define MAX_USN_LEN 32char usernameMAX_USN_LEN;char passwordMAX_PWD_LEN;SOCKET sockClient;int all=0;char recvn50;int connect(char *SrvIP,int SrvPort)WSADATA wsaData;if(WSAStartup(0x101,&wsaData)printf(初始化错误n);return 1;sockClient=socket(AF_INET,SOCK_STREAM,0);if(sockClient = SOCKET_ERROR)printf(建立套接字错误n);return 2;SOCKADDR_IN addrSrv;addrSrv.sin_addr.s_addr=inet_addr(SrvIP);addrSrv.sin_family=AF_INET;addrSrv.sin_port=htons(SrvPort);if(connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)printf(连接服务器失败，请检查服务器是否运行n);return 3;printf(成功连接服务器nn);send(sockClient,CONNECT,strlen(CONNECT)+1,0);return 0;void getspwd(char * pwdin)char ctemp;int itemp = 0;printf(密 码:);while(ctemp = getch()!=r)printf(*);pwdinitemp = ctemp;itemp+;pwdinitemp = 0;printf(n);int login(char *username)send(sockClient,LOGIN,strlen(LOGIN)+1,0);printf(用户名:%sn,username);send(sockClient,username,strlen(username)+1,0);recv(sockClient,recvn,50,0);if(!strcmp(recvn,1)printf(无此用户，请检查n);return 1;getspwd(password);send(sockClient,password,strlen(password)+1,0);recv(sockClient,recvn,50,0);if(!strcmp(recvn,1)printf(密码错误，请检查n);return 2;printf(登陆成功n);return 0;int query(char *clsnum)send(sockClient,QUERY,strlen(QUERY)+1,0);send(sockClient,clsnum,strlen(clsnum)+1,0);recv(sockClient,recvn,50,0);printf(%sn,recvn);return 0;int queryavg()send(sockClient,QUERYAVG,strlen(QUERYAVG)+1,0);recv(sockClient,recvn,50,0);printf(%sn,recvn);return 0;int quit()send(sockClient,QUIT,strlen(QUIT)+1,0);closesocket(sockClient);WSACleanup();exit(0);int main()printf(*成绩查询系统 客户机*nn);while(1)char com255;char option32=0;char para532=0;gets(com);int i=0, j=0, k=0;while(comi!=0)while(comi!= )optioni=comi&0xdf;i+;i+;while(comi!=0)while(comi= )j+;k=0;i+;parajk=comi;i+;k+;if(!strcmp(option,CONNECT)all=0;int portn = atoi(para1);if(connect(para0,portn)getch();exit(1);all=1;else if(!strcmp(option,LOGIN)all=1;if(all=1)if(login(para0)=0)all=2;elseprintf(请先连接服务器n);else if(!strcmp(option,QUERY)if(all=2)query(para0);elseprintf(请先登录n);else if(!strcmp(option,QUERYAVG)if(all=2)queryavg();elseprintf(请先登录n);else if(!strcmp(option,QUIT)quit();else if(!strcmp(option,HELP)printf(CONNECT IP地址 端口号nt连接到成绩查询服务器。n);printf(LOGIN 用户名nt用户登陆验证。n);printf(QUERY 科目号（或科目名）nt查询该用户该科目的成绩。n);printf(QUERYAVGnt查询该用户所有科目的平均成绩。n);printf(QUITnt退出查询系统，断开与服务器的连接。n);elseprintf(n输入命令错误,输入HELP查看帮助。n);return 0;服务器端：#include#include#include #define USER_NUM 2#define CLS_NUM 5#pragma comment(lib , Wsock32.lib )char clsUSER_NUMCLS_NUM + 132=平均分：81.2,高数 78,线代 69,英语 94,计算机 72,政治 93,平均分：83.8,高数 94,线代 83,英语 75,计算机 89,政治 78;/高数，线代，英语，计算机，政治；char userUSER_NUM210=alpha,123,beta,321;int usern=0;int main()printf(*成绩查询系统 服务器*nn);WSADATA wsaData;if(WSAStartup(0x101,&wsaData)printf(初始化错误n);return 1;SOCKET sockSrv;sockSrv=socket(AF_INET,SOCK_STREAM,0);if(sockSrv = SOCKET_ERROR)printf(建立套接字错误n);return 2;SOCKADDR_IN addrSrv;addrSrv.sin_addr.s_addr=inet_addr(0.0.0.0);addrSrv.sin_family=AF_INET;addrSrv.sin_port=htons(3067);bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR);listen(sockSrv,1);printf(-成功建立监听-n);SOCKADDR_IN addrClient;int len=sizeof(SOCKADDR);while(1)int i;SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);char sendBuf50;char recvBuf50;while(strcmp(recvBuf,QUIT)ed:if(recv(sockConn,recvBuf,50,0) = SOCKET_ERROR)strcpy(recvBuf,QUIT);if(!strcmp(recvBuf,LOGIN)printf(LOGINn);recv(sockConn,recvBuf,50,0);int temph=0;for(int i=0;i5|tem1)send(sockConn,无此课程，请查询,strlen(无此课程，请查询)+1,0);printf(QUERY ERRORn);goto ed;send(sockConn,clsuserntem,strlen(clsuserntem)+1,0);printf(QUERY SUCCESSn);else if(!st