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m0_57721336
陕西热心市民
5 年前
truem0_57721336

# include < stdio . h >
int main ( void )
{
printf ("% d ", printf ("-123"));
return 0;
}
为什么结果是-1234啊
保持热爱共赴山海
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A transaction of DB can be auto-commit or manual-commit or manual-rollback.A transaction includes many data proccesses including update or delete or add,and within the processes from a same transaction either all of them succeed or all of them fail.