public function selectInsert($fields, $table)
{
// 分析查询表达式
$options = $this->parseExpress();
// 生成SQL语句
$table = $this->parseSqlTable($table);
$sql = $this->builder()->selectInsert($fields, $table, $options);
// 获取参数绑定
$bind = $this->getBind();
if ($options['fetch_sql']) {
// 获取实际执行的SQL语句
return $this->connection->getRealSql($sql, $bind);
} else {
// 执行操作
return $this->execute($sql, $bind);
}
}