-1
다음 콜백 함수가 있습니다.콜백 함수의 출력 형식 지정
1 mark [email protected] 98989898 mark mark ADMN U Where are you studying SIM 0
2 ken [email protected] 92222898 ken ken ADMN U Where are you studying SIM 0
3 joseph [email protected] 92333718 joseph joseph ADMN U Where are you studying SIM 0
4 ricky [email protected] 81822801 ricky ricky ADMN U Where are you studying SIM 0
5 ck [email protected] 94567828 ck ck ADMN U Where are you studying SIM 0
내가 콜백 함수에서이를 사용하여 시도 :
를 다음 출력1
mark
[email protected]
98989898
mark
mark
ADMN
U
Where are you studying
SIM
0
2
ken
[email protected]
92222898
ken
ken
ADMN
U
Where are you studying
SIM
0
3
joseph
[email protected]
92333718
joseph
joseph
ADMN
U
Where are you studying
SIM
0
4
ricky
[email protected]
81822801
ricky
ricky
ADMN
U
Where are you studying
SIM
0
5
ck
[email protected]
94567828
ck
ck
ADMN
U
Where are you studying
SIM
0
I가 수직 대신 같이 가로 포맷 할 필요를 생성
// This is the callback function to display the select data in the table
static int callback(void *NotUsed, int argc, char **argv, char **szColName)
{
for(int i = 0; i < argc; i++)
{
std::cout << " = " << argv[i] << std::endl;
}
std::cout << "\n";
return 0;
}
// prepare our sql statements
const char *pSQL[6];
pSQL[0] = "SELECT * FROM User";
// execute sql
for(int i = 0; i < 1; i++)
{
rc = sqlite3_exec(db, pSQL[i], callback, 0, &szErrMsg);
if(rc != SQLITE_OK)
{
std::cout << "SQL Error: " << szErrMsg << std::endl;
sqlite3_free(szErrMsg);
break;
}
}
1) std::cout << argv[i] << "\t";
2) std::cout << argv[i] << setw(15);
3) std::cout << setw(15) << argv[i];
하지만 나에게 준 모든 형식이 잘못되었습니다.
1 mark [email protected] 98989898 mark mark ADMN U Where are you studying SIM 0
2 ken [email protected] 92222898 ken ken ADMN U Where are you studying SIM 0
3 joseph [email protected] 92333718 joseph joseph ADMN U Where are you studying SIM 0
4 ricky [email protected] 81822801 ricky ricky ADMN U Where are you studying SIM 0
5 ck [email protected] 94567828 ck ck ADMN U Where are you studying SIM 0
예, std :: endl을 제거하고 후자의 세 가지 중 하나를 시도했습니다 : 1) std :: cout << argv [i] << "\ t"; 2) std :: cout << argv [i] << setw (15); 3) std :: cout << setw (15) << argv [i]; –