junmoyo

#include <stdio.h>

#include <stdlib.h>

int main(void)

{

int szBuffer[256] = { 0, };

int nBuffer = 0;

gets_s(szBuffer, sizeof(szBuffer));

nBuffer = atol(szBuffer);

printf("%d", nBuffer);

return 0;

}

#include <stdio.h>

#include <stdlib.h>

int main(void)

{

int szBuffer[256] = { 0, };

int nBuffer = 0;

gets_s(szBuffer, sizeof(szBuffer));

nBuffer = atoi(szBuffer);

printf("%d", nBuffer);

return 0;

}

#include <stdio.h>

#include <stdlib.h>

int main(void)

{

int szBuffer[256] = { 0, };

int nNomarl = 0;

scanf_s("%d", &nNomarl, sizeof(int));

_itoa_s(nNomarl, (char*)szBuffer, sizeof(szBuffer), 10); // 숫자 10은 진수를 뜻한다. 10진수로 저장해라! 16적으면16       //진수형태 로 문자열을 저장합니다.

puts("문자열 출력");

puts(szBuffer);

//atoi

return 0;

}

#include <stdio.h>

int main(void)

{

int szBuffer[256] = { 0, };

char *p1 = "hello ";

char *p2 = "mozzi";

int nBufferSize = sizeof(szBuffer);

sprintf_s(szBuffer, nBufferSize, "%s %s", p1, p2);

puts(szBuffer);

return 0;

}

#include <stdio.h>

#include <string.h>

int main(void)

{

unsigned char szBuffer[256] = { 0, };

char *pCopy = NULL;

printf("input : ");

gets(szBuffer);

pCopy = _strdup(szBuffer);

if (pCopy != NULL)

{

//succeed

printf("Succeed Memory allocation, length : %d \n", strlen(pCopy));

puts(pCopy);

free(pCopy);

}

else

{

puts("Failed Memory allocation");

}

return 0;

}

#include <stdio.h>

#include <string.h>

int main(void)

{

unsigned char szBuffer[256] = { 0, };

printf("input:");

gets(szBuffer);

_strrev(szBuffer);

printf("output:");

puts(szBuffer);

return 0;

}

#include <stdio.h>

#include <string.h>

int main(void)

{

char szBuffer[1024] = { 0, };

char *pTemp = NULL;

gets(szBuffer);

_strlwr_s(szBuffer, sizeof(szBuffer));

puts(szBuffer);

return 0;

#include <stdio.h>

#include <string.h>

int main(void)

{

char szBuffer[1024] = { 0, };

char *pTemp = NULL;

gets(szBuffer);

//_strupr_s(szBuffer, strlen(szBuffer)+1);

_strupr_s(szBuffer, sizeof(szBuffer));

puts(szBuffer);

return 0;

}

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

int main(void)

{

char *Password = "helloMozzi;

char szBuffer[256] = { 0, };

char szShow[256] = { 0, };

int character = '0';

int count = 0;

int Run = 1;

while (Run)

{

printf("password :%s", szShow);

character = getch();// 문자 입력 받고

if (character == 8) // backspace

{

if (count > 0)

{

count--;

szBuffer[count] = '\0';

}

}

else

{

if (character != 13)

szBuffer[count] = character;

}

if (count < 256)

{

szBuffer[count + 1] = '\0';

}

else

{

count = -1;

}

if (character == 13)// 엔터인지 검사하고

{

if (strcmp(szBuffer, Password) == 0)

{

puts("\nmatch password");

Run = 0;

}

else

{

memset(szBuffer, 0, sizeof(szBuffer));

}

count = -1;

}

system("cls");

memcpy(szShow, szBuffer, sizeof(szShow));

//< 이구간을 좀 변형 ㅎ

if (count > 0)

_strnset_s(szShow, sizeof(szShow), '*', count);

if (character == 8)

{

}

else

{

if (count >= 0)

szShow[count] = character;

++count;

}

}

return 0;

}

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

int main(void)

{

char *Password = "Mozzi";

char szBuffer[256] = { 0, };

char szShow[256] = { 0, };

int character = '0';

int count = 0;

int Run = 1;

while (Run)

{

printf("password :%s", szShow);

character = getch();// 문자 입력 받고

if (character == 8) // backspace

{

if (count > 0)

{

count--;

szBuffer[count] = '\0';

}

}

else

{

if (character != 13)

szBuffer[count] = character;

}

if (count < 256)

{

szBuffer[count + 1] = '\0';

}

else

{

count = -1;

}

if (character == 13)// 엔터인지 검사하고

{

if (strcmp(szBuffer, Password) == 0)

{

puts("\nmatch password");

Run = 0;

}

else

{

memset(szBuffer, 0, sizeof(szBuffer));

}

count = -1;

}

system("cls");

memcpy(szShow, szBuffer, sizeof(szShow));

//< 이구간을 좀 변형 ㅎ

_strset_s(szShow, sizeof(szShow), '*');

if (character == 8)

{

}

else

{

if (count >= 0)

szShow[count] = character;

++count;

}

}

return 0;

}