如果你不確定該用哪個，直接用 `def` 就好。

---

**注意**：你可以在*路徑操作函式*中混合使用 `def` 和 `async def` ，並使用最適合你需求的方式來定義每個函式。FastAPI 會幫你做正確的處理。

無論如何，在上述哪種情況下，FastAPI 仍將以非同步方式運行，並且速度非常快。

但透過遵循上述步驟，它將能進行一些效能最佳化。

## 技術細節 { #technical-details }

現代版本的 Python 支援使用 **「協程」** 的 **`async` 和 `await`** 語法來寫 **「非同步程式碼」**。

接下來我們逐一介紹：

* **非同步程式碼**
* **`async` 和 `await`**
* **協程**

## 非同步程式碼 { #asynchronous-code }

如果你不清楚，使用 `def` 就好.

---

**注意**：你可以根据需要在路径操作函数中混合使用 `def` 和 `async def`，并使用最适合你的方式去定义每个函数。FastAPI 将为他们做正确的事情。

无论如何，在上述任何情况下，FastAPI 仍将异步工作，速度也非常快。

但是，通过遵循上述步骤，它将能够进行一些性能优化。

## 技术细节 { #technical-details }

Python 的现代版本支持通过一种叫**"协程"**——使用 `async` 和 `await` 语法的东西来写**”异步代码“**。

让我们在下面的部分中逐一介绍：

* **异步代码**
* **`async` 和 `await`**
* **协程**

## 异步代码 { #asynchronous-code }

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"encoding/xml"
	"fmt"

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package config

import (
	"os"
	"testing"
)

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

  background: #d9515d;
  -webkit-box-shadow: 25px 0 0 #f4c025, 50px 0 0 #3ec930;
          box-shadow: 25px 0 0 #f4c025, 50px 0 0 #3ec930;
}

.doc-param-details .highlight {
  overflow-x: auto;
  width: 0;
  min-width: 100%;
}

.md-typeset dfn {
  border-bottom: .05rem dotted var(--md-default-fg-color--light);
  cursor: help;

// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"context"
	"errors"

    }

    /**
     * Installs a plugin from either an uploaded JAR file or from the available artifacts.
     *
     * @param form the install form containing plugin installation details
     * @return HTML response redirecting to the plugin list
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse install(final InstallForm form) {

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */