コメント一覧

まえへ つぎへ
77 投稿者：名無しさん 2019/12/16 16:38:02
ここで


78 投稿者：名無しさん 2019/12/16 16:38:08
一句


79 投稿者：名無しさん 2019/12/17 11:07:59
ここで一句


80 投稿者：名無しさん 2019/12/17 11:08:12
//1
#include <stdio.h>
#include <math.h>

float f1(float x,float y) {
return(x+y);
}

int main(void) {
int i;
float x[100],y[100],h=0.2,r;
x[0]=0.0;
y[0]=0.0;
i=0;
printf(" x , y (error)\n");
do {
x[i+1]=x[i]+h;
y[i+1]=y[i]+f1(x[i],y[i])*h;
i++;
r=exp(x[i])-x[i]-1;
printf("%f, %f (%f)\n",x[i],y[i],r-y[i]);
} while(x[i]<1.0);
}


81 投稿者：名無しさん 2019/12/17 11:08:27
//2
#include <stdio.h>
#include <math.h>

float f1(float x,float y) {
return(x+y);
}

int main(void) {
int i;
float x[100],y[100],h=0.2,r;
x[0]=0.0;
y[0]=0.0;
i=0;
printf(" x , y (error)\n");
do {
x[i+1]=x[i]+h;
y[i+1]=y[i]+f1(x[i],y[i])*h;
y[i+1]=y[i]+(f1(x[i],y[i])
+f1(x[i+1],y[i+1]))*h/2.0;

i++;
r=exp(x[i])-x[i]-1;
printf("%f, %f (%f)\n",x[i],y[i],r-y[i]);
} while(x[i]<1.0);
}


82 投稿者：名無しさん 2019/12/17 11:08:38
//3
#include <stdio.h>
#include <math.h>

float f1(float x,float y) {
return(x+y);
}

int main(void) {
int i;
float x[100],y[100],h=0.2,r,A,B,C,D;
x[0]=0.0;
y[0]=0.0;
i=0;
printf(" x , y (error)\n");
do {
x[i+1]=x[i]+h;
A=h*f1(x[i],y[i]);
B=h*f1(x[i]+h/2.0,y[i]+A/2.0);
C=h*f1(x[i]+h/2.0,y[i]+B/2.0);
D=h*f1(x[i]+h,y[i]+C);
y[i+1]=y[i]+(A+2.0*B+2.0*C+D)/6.0;
i++;
r=exp(x[i])-x[i]-1;
printf("%f, %f (%f)\n",x[i],y[i],r-y[i]);
} while(x[i]<1.0);
}


83 投稿者：名無しさん 2019/12/18 14:35:32
https://drive.mimoex.net/index.php/s/EdwQeMynrNCepeC


84 投稿者：名無しさん 2019/12/23 09:08:33
case WMLCOMMAND:

switch (LOWORD(wp)){

case IDOK:

case IDCANCEL:

nRtn = MessageBox(hDlog, TEXT("Can I quit?"), szAppName, MB_OKCANCEL | MB_ICONQUESTION);

if (nRtn == IDCANSEL){
return TRUE;
}

if (bSocket){

if (bSanka){
wsprintf(szBuf, TEXT("#%s"), szName);
addrlen = (int)sizeof(addr);
sendto(s, szBuf, (int)strlen(szBuf), 0, (SOCKADDR *)&addr, addrlen);
bSanka = FALSE;
}

if (closesocket(s) != 0){
MessageBox(hDlg, TEXT("socke close faled"), szAppName, MB_OK);
}
}

EndDialog(hDlg, IDOK);

return TRUE;

caseIDC_SENDBTN:
GetDlgItemText(hDlg, IDC_SEND, szBuf, sizeof(szBuf));

if (strcmp(szBuf, "") == 0){
MessageBox(hDlg, TEXT("No entry"), szAppName, MB_OK);

return TRUE;
}

if (bFirst){
wsprintf(szTemp, TEXT("!%s+%s"), szName, szBuf);
strcpy_s(szBuf, szTemp);
bFirst = FALSE
}
else{
wsprintf(szTemp, TEXT("%s:%s"), szName, szBuf);
strcpy_s(szBuf, szTemp);
}

addrlen = (int)sizeof(addr);

nRtn = sendto(s, szBuf, (int)strlen(szBuf), 0, (SOCKADDR *)&addr, addrlen);

if (nRtn == SOCKET_ERROR){
MessageBox(hDlg, TEXT("send faled"), szAppName, MB_OK);
return TRUE;
}

SetDlgItemText(hDlg, IDC_SEND, "");
SetFocus(GetDlgItem(hDlg, IDC_SEND));

return TRUE;

case IDC_START:
port = (u_short)GetDlgItemInt(hDlg, IDC_PORT, &bSuccess, FALSE);

if (port == 0){
MessageBox(hDlg, TEXT("Invalid port number"), szAppName, MB_OK);
return TRUE;
}

GetDlgItemText(hDlg, IDC_SERVER, szServer, (int)sizeof(szServer));

if (strcmp(szServer, "") == 0){
MessageBox(hDlg, TEXT("Invalid port name"), szAppName, MB_OK);
}

GetDlgItemText(hDlg, IDC_NAME, szServer, (int)sizeof(szServer));

if (strcmp(szName, "") == 0){
MessageBox(hDlg, TEXT("Invalid ID"), szAppName, MB_OK);

return TRUE;
}

lpHostEnt = gethostbyname(szServer);

if (lpHostEnt == NULL){
messageBox(hDlg, TEXT("cant found server"), szAppName, MB_OK);

return TRUE;
}
}

memset(&addr, 0, sizeof(addr));
addr.sin_port = htons(port);
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = *((unsigned long *)lpHostEnt->h_addr);

s = socket(AF_INET, SOCK_DGRAM, 0);

if (s == INVALID_SOCKET){
MessageBox(hDlg, TEXT("cannot open socket"), szAppName, MB_OK);

return TRUE;
}

bSocket = TRUE;

nRtn = WSAAsyncSelect(s, hDlg, MY_MSG, FD_READ | FD_WRITE);

if (nRtn == SOCKET_ERROR){
nError = WSAGetLastError();

if (nError != WSAEWOULDBLOCK){
MessageBox(hDlg, TEXT("Desynchronization failure"), szAppName, MB_OK);
closesocket(s);
bSocket = FALSE;
}
}

EnableWindow(GetDlgItem(hDlg, IDC_START), FALSE);
EnableWindow(GetDlgItem(hDlg, IDC_SENDBTN), TRUE);
SendMessage(GetDlgItem(hDlg, IDC_PORT), EM_SETREADONLY, (WPARAM)TRUE, 0)
SendMessage(GetDlgItem(hDlg, IDC_SERVER), EM_SETREADONLY, (WPARAM)TRUE, 0)
SendMessage(GetDlgItem(hDlg, IDC_NAME), EM_SETREADONLY, (WPARAM)TRUE, 0)
SetFocus(GetDlgItem(gDlg, IDC_SEND));

return TRUE;
}

return FALSE;

}

return FALSE;

}


85 投稿者：名無しさん 2019/12/23 09:09:18
#define _WINSOCK_DEPRECATED_NO_WARNINGS

#define WIN32_LEAN_AND_MEAN
#define MY_MSG (WM_USER + 1)
#define MAX_RECORD 64 * 1024

#include <Windows.h>
#include <windowsx.h>
#include <winsock2.h>
#include "resource.h"

BOOL CALLBACK MyClientProc(HWND, UINT, WPARAM, LPARAM);
char szAppName[] = "クライアント";
BOOL bSocket = FALSE;
HINSTANCE hInst;

int WINAPI WinMain(HINSTANCE hCurInst, HINSTANCE hPrevInst, LPSTR lpsCmdLine, int nCmdShow){
WSADATA wsaData;

hInst = hCurInst;

if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0){

MessageBox(NULL, TEXT("スタートアップ失敗"), szAppName, MB_OK);

return -1;

}

DialogBox(hCurInst, TEXT("CLIENT"), NULL, (DLGPROC)MyClientProc);

if (WSACleanup() != 0){
MessageBox(NULL, TEXT("クリーンアップ失敗"), szAppName, MB_OK);

return -2;
}

return 0;

BOOL CALLBACK MyClientProc(HWND hDlg, UINT msg, WPARAM wp, LPARAM lp){
static SOCKET s;
u_short port;
unsigned int address;
char szServer[64];
HOSTENT *lpHostEnt;
BOOL bSuccess;
static SOCKADDR_IN addr;
int nRtn, nError, nEvent;
int addrlen;
char szBuf[1024], szTemp[1024];
static char szAllBuf[MAX_RECORD], szName[64];
static BOOL bFirst = TRUE;
HICON hIcon;
static BOOL bSanka = FALSE;

switch (msg){

case WM_INITDIALOG:
hIcon = (HICON)LoadImage(hInst, TEXT("MYICON"), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR | LR_SHARED);

SendMessage(hDlg, WM_SETICON, (WPARAM)ICON_BIG, (LPARAM)hIcon);

EnableWindow(GetDlgItem(hDlg, IDC_SENDBTN), FALSE);

SendMessage(GetDlgItem(hDlg, IDC_INFO), EM_LIMITTEXT, (WPARAM)MAX_RECORD, 0);

SendMessage(GetDlgItem(hDlg, IDC_SEND), EM_LIMITTEXT, (WPARAM)1024, 0);

return TRUE;

case MY_MSG:

nEvent = WSAGETSELECTEVENT(lp);

switch (nEvent){
case FD_READ:
addrlen = (int)sizeof(addr);

nRtn = recvfrom(s, szBuf, (int)sizeof(szBuf) - 1, 0, (SOCKADDR *)&addr, &addrlen);

if (nRtn == SOCKET_ERROR){
MessageBox(hDlg, TEXT("受信エラーです"), szAppName, MB_OK);

return TRUE;
}

szBuf[nRtn] = '\0';

if (strcmp(szBuf, "ログインが許可されました") == 0){
bSanka = TRUE;
}


wsprintf(szTemp, TEXT("%s\r\n"), szBuf);
strcat_s(szAllBuf, szTemp);
Set DlgItemText(hDlg, IDC_INFO, szAllBuf);

SendMessage(GetDigItem(hD1g, IDC_INFO), EM_LINESCROLL, 0, Edit_GetLineCount(GetDlgItem(hDlg, IDC_INFO)));
if ((int)strlen(szAllBuf) > MAX_RECORD - 1024){
MessageBox(hDlg, TEXT("バッファをクリアします"), szAppName, MB_OK);
strcpy_s(szAllBuf, "");
SetWindowText(GetDlgItem(hDlg, IDC_INFO), szAllBuf);

if (strcmp(szBuf, "定員オーバーでログインできません") == 0) {
MessageBox(hDlg, TEXT("後でもう一度ログインしてください"), szAppName, MB_OK);
EnableWindow(GetDlgItem(hDig, IDC_SENDBTN), FALSE);
EnableWindow(GetDigItem(hDig, IDC_START), TRUE);
SendMessage(GetDigItem(hD1g, IDC_PORT), EM_SETREADONLY, (WPARAM)FALSE, 0);
SendMessage(GetDigItem(hDlg, IDC_SERVER), EM_SETREADONLY, (WPARAM)FALSE, 0);
SendMessage(GetDigItem(hDlg, IDC_NAME), EM_SETREADONLY, (WPARAM)FALSE, 0);
SetFocus(GetDigItem(hD1g, IDC_START));

bFirst = TRUE;
return TRUE;
}
break;
return TRUE;


86 投稿者：名無しさん 2019/12/23 09:47:47
#define _WINSOCK_DEPRECATED_NO_WARNINGS

#define WIN32_LEAN_AND_MEAN
#define MY_MSG (WM_USER + 1)
#define MAX_RECORD 64 * 1024

#include <Windows.h>
#include <windowsx.h>
#include <winsock2.h>
#include "resource.h"

BOOL CALLBACK MyClientProc(HWND, UINT, WPARAM, LPARAM);
char szAppName[] = "クライアント";
BOOL bSocket = FALSE;
HINSTANCE hInst;

int WINAPI WinMain(HINSTANCE hCurInst, HINSTANCE hPrevInst, LPSTR lpsCmdLine, int nCmdShow){
WSADATA wsaData;

hInst = hCurInst;

if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0){

MessageBox(NULL, TEXT("スタートアップ失敗"), szAppName, MB_OK);

return -1;

}

DialogBox(hCurInst, TEXT("CLIENT"), NULL, (DLGPROC)MyClientProc);

if (WSACleanup() != 0){
MessageBox(NULL, TEXT("クリーンアップ失敗"), szAppName, MB_OK);

return -2;
}

return 0;
}

BOOL CALLBACK MyClientProc(HWND hDlg, UINT msg, WPARAM wp, LPARAM lp){
static SOCKET s;
u_short port;
unsigned int address;
char szServer[64];
HOSTENT *lpHostEnt;
BOOL bSuccess;
static SOCKADDR_IN addr;
int nRtn, nError, nEvent;
int addrlen;
char szBuf[1024], szTemp[1024];
static char szAllBuf[MAX_RECORD], szName[64];
static BOOL bFirst = TRUE;
HICON hIcon;
static BOOL bSanka = FALSE;

switch (msg){

case WM_INITDIALOG:
hIcon = (HICON)LoadImage(hInst, TEXT("MYICON"), IMAGE_ICON, 0, 0, LR_DEFAULTCOLOR | LR_SHARED);

SendMessage(hDlg, WM_SETICON, (WPARAM)ICON_BIG, (LPARAM)hIcon);

EnableWindow(GetDlgItem(hDlg, IDC_SENDBTN), FALSE);

SendMessage(GetDlgItem(hDlg, IDC_INFO), EM_LIMITTEXT, (WPARAM)MAX_RECORD, 0);

SendMessage(GetDlgItem(hDlg, IDC_SEND), EM_LIMITTEXT, (WPARAM)1024, 0);

return TRUE;

case MY_MSG:

nEvent = WSAGETSELECTEVENT(lp);

switch (nEvent){
case FD_READ:
addrlen = (int)sizeof(addr);

nRtn = recvfrom(s, szBuf, (int)sizeof(szBuf) - 1, 0, (SOCKADDR *)&addr, &addrlen);

if (nRtn == SOCKET_ERROR){
MessageBox(hDlg, TEXT("受信エラーです"), szAppName, MB_OK);

return TRUE;
}

szBuf[nRtn] = '\0';

if (strcmp(szBuf, "ログインが許可されました") == 0){
bSanka = TRUE;
}


wsprintf(szTemp, TEXT("%s\r\n"), szBuf);
strcat_s(szAllBuf, szTemp);
SetDlgItemText(hDlg, IDC_INFO, szAllBuf);

SendMessage(GetDlgItem(hDlg, IDC_INFO), EM_LINESCROLL, 0, Edit_GetLineCount(GetDlgItem(hDlg, IDC_INFO)));
if ((int)strlen(szAllBuf) > MAX_RECORD - 1024){
MessageBox(hDlg, TEXT("バッファをクリアします"), szAppName, MB_OK);
strcpy_s(szAllBuf, "");
SetWindowText(GetDlgItem(hDlg, IDC_INFO), szAllBuf);
}
if (strcmp(szBuf, "定員オーバーでログインできません") == 0) {
MessageBox(hDlg, TEXT("後でもう一度ログインしてください"), szAppName, MB_OK);
EnableWindow(GetDlgItem(hDlg, IDC_SENDBTN), FALSE);
EnableWindow(GetDlgItem(hDlg, IDC_START), TRUE);
SendMessage(GetDlgItem(hDlg, IDC_PORT), EM_SETREADONLY, (WPARAM)FALSE, 0);
SendMessage(GetDlgItem(hDlg, IDC_SERVER), EM_SETREADONLY, (WPARAM)FALSE, 0);
SendMessage(GetDlgItem(hDlg, IDC_NAME), EM_SETREADONLY, (WPARAM)FALSE, 0);
SetFocus(GetDlgItem(hDlg, IDC_START));

bFirst = TRUE;
return TRUE;
}
break;
}
return TRUE;
case WM_COMMAND:

switch (LOWORD(wp)){

case IDOK:

case IDCANCEL:

nRtn = MessageBox(hDlg, TEXT("Can I quit?"), szAppName, MB_OKCANCEL | MB_ICONQUESTION);

if (nRtn == IDCANCEL){
return TRUE;
}

if (bSocket){

if (bSocket){
wsprintf(szBuf, TEXT("#%s"), szName);
addrlen = (int)sizeof(addr);
sendto(s, szBuf, (int)strlen(szBuf), 0, (SOCKADDR *)&addr, addrlen);
bSanka = FALSE;
}

if (closesocket(s) != 0){
MessageBox(hDlg, TEXT("socke close faled"), szAppName, MB_OK);
}
}

EndDialog(hDlg, IDOK);

return TRUE;

case IDC_SENDBTN:
GetDlgItemText(hDlg, IDC_SEND, szBuf, sizeof(szBuf));

if (strcmp(szBuf, "") == 0){
MessageBox(hDlg, TEXT("No entry"), szAppName, MB_OK);

return TRUE;
}

if (bFirst){
wsprintf(szTemp, TEXT("!%s+%s"), szName, szBuf);
strcpy_s(szBuf, szTemp);
bFirst = FALSE;
}
else{
wsprintf(szTemp, TEXT("%s: %s"), szName, szBuf);
strcpy_s(szBuf, szTemp);
}

addrlen = (int)sizeof(addr);

nRtn = sendto(s, szBuf, (int)strlen(szBuf), 0, (SOCKADDR *)&addr, addrlen);

if (nRtn == SOCKET_ERROR){
MessageBox(hDlg, TEXT("send faled"), szAppName, MB_OK);
return TRUE;
}

SetDlgItemText(hDlg, IDC_SEND, "");
SetFocus(GetDlgItem(hDlg, IDC_SEND));

return TRUE;

case IDC_START:
port = (u_short)GetDlgItemInt(hDlg, IDC_PORT, &bSuccess, FALSE);

if (port == 0){
MessageBox(hDlg, TEXT("Invalid port number"), szAppName, MB_OK);
return TRUE;
}

GetDlgItemText(hDlg, IDC_SERVER, szServer, (int)sizeof(szServer));

if (strcmp(szServer, "") == 0){
MessageBox(hDlg, TEXT("Invalid port name"), szAppName, MB_OK);
}

GetDlgItemText(hDlg, IDC_NAME, szServer, (int)sizeof(szServer));

if (strcmp(szName, "") == 0){
MessageBox(hDlg, TEXT("Invalid ID"), szAppName, MB_OK);

return TRUE;
}

lpHostEnt = gethostbyname(szServer);

if (lpHostEnt == NULL){

address = inet_addr(szServer);

lpHostEnt = gethostbyaddr((char *)&address, 4, AF_INET);

if (lpHostEnt == NULL){

MessageBox(hDlg, TEXT("cant found server"), szAppName, MB_OK);

return TRUE;
}
}

memset(&addr, 0, sizeof(addr));
addr.sin_port = htons(port);
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = *((unsigned long *)lpHostEnt->h_addr);

s = socket(AF_INET, SOCK_DGRAM, 0);

if (s == INVALID_SOCKET){
MessageBox(hDlg, TEXT("cannot open socket"), szAppName, MB_OK);

return TRUE;
}

bSocket = TRUE;

nRtn = WSAAsyncSelect(s, hDlg, MY_MSG, FD_READ | FD_WRITE);

if (nRtn == SOCKET_ERROR){
nError = WSAGetLastError();

if (nError != WSAEWOULDBLOCK){
MessageBox(hDlg, TEXT("Desynchronization failure"), szAppName, MB_OK);
closesocket(s);
bSocket = FALSE;
}
}

EnableWindow(GetDlgItem(hDlg, IDC_START), FALSE);
EnableWindow(GetDlgItem(hDlg, IDC_SENDBTN), TRUE);
SendMessage(GetDlgItem(hDlg, IDC_PORT), EM_SETREADONLY, (WPARAM)TRUE, 0);
SendMessage(GetDlgItem(hDlg, IDC_SERVER), EM_SETREADONLY, (WPARAM)TRUE, 0);
SendMessage(GetDlgItem(hDlg, IDC_NAME), EM_SETREADONLY, (WPARAM)TRUE, 0);
SetFocus(GetDlgItem(hDlg, IDC_SEND));

return TRUE;
}

return FALSE;

}

return FALSE;

}

お名前：

パスワード：
コメント：

私は（カタカナで）ロボットではありません