te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>winforms - Windows Forms C++ struggling with reading the 'enter' key - Stack Overflow

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    void MyForm_KeyDown(System::Object^ sender, System::Windows::Forms::KeyEventArgs^ e) {
    if (e->KeyCode == Keys::Enter) {
        EqualsButton_Click(sender, e); // Выполнить вычисление при нажатии Enter
        label2->Text = "checked";
    }
}

void MyForm_Load(System::Object^ sender, System::EventArgs^ e) {
    this->KeyPreview = true; // Разрешаем перехват событий клавиатуры
    this->KeyPress += gcnew System::Windows::Forms::KeyPressEventHandler(this, &MyForm::MyForm_KeyPress);
    this->KeyDown += gcnew System::Windows::Forms::KeyEventHandler(this, &MyForm::MyForm_KeyDown);
}

    We're trying to make a basic calculator project using C++ Windows Forms, but whenever we press enter (which is supposed to hit the equals button) the program seems to just press the last pressed button one more time. When you first launch. We've already tried PreviewKeyDownEventArgs^ e as argument and used KeyValue, but it doesn't work.

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