///

## 运行服务器程序

如果您手动安装了 ASGI 服务器，通常需要以特定格式传递一个导入字符串，以便服务器能够正确导入您的 FastAPI 应用：

<div class="termy">

```console
$ uvicorn main:app --host 0.0.0.0 --port 80

<span style="color: green;">INFO</span>:     Uvicorn running on http://0.0.0.0:80 (Press CTRL+C to quit)
```

</div>

/// note

命令 `uvicorn main:app` 的含义如下：

* `main`：指的是 `main.py` 文件（即 Python “模块”）。

none;\n}\n\n.navbar-light .navbar-brand {\n  color: rgba(0, 0, 0, 0.9);\n}\n\n.navbar-light .navbar-brand:hover, .navbar-light .navbar-brand:focus {\n  color: rgba(0, 0, 0, 0.9);\n}\n\n.navbar-light .navbar-nav .nav-link {\n  color: rgba(0, 0, 0, 0.5);\n}\n\n.navbar-light .navbar-nav .nav-link:hover, .navbar-light .navbar-nav .nav-link:focus {\n  color: rgba(0, 0, 0, 0.7);\n}\n\n.navbar-light .navbar-nav .nav-link.disabled {\n  color: rgba(0, 0, 0, 0.3);\n}\n\n.navbar-light .navbar-nav .show > .nav-link,\n.navbar-light...

	return unsigned, signed
}

// reset clears the block with all zeros.
func (b *block) reset() {
	*b = block{}
}

type headerV7 [blockSize]byte

func (h *headerV7) name() []byte     { return h[000:][:100] }
func (h *headerV7) mode() []byte     { return h[100:][:8] }
func (h *headerV7) uid() []byte      { return h[108:][:8] }
func (h *headerV7) gid() []byte      { return h[116:][:8] }

// https://docs.aws.amazon.com/AmazonS3/latest/API/images/s3select-frame-diagram-end.png
//
// Payload specification:
// End messages have no payload.
var endMessage = []byte{
	0, 0, 0, 56, // total byte-length.
	0, 0, 0, 40, // headers byte-length.
	193, 198, 132, 212, // prelude crc.
	13, ':', 'm', 'e', 's', 's', 'a', 'g', 'e', '-', 't', 'y', 'p', 'e', 7, 0, 5, 'e', 'v', 'e', 'n', 't', // headers.

            b[off + 2] = 0x00;
            b[off + 3] = 0x00;
            return 4;
        }).when(raf).read(any(byte[].class), anyInt(), eq(4));
        assertEquals(1.0f, raf.readFloat(), 0.00001);

        // double 1.0 -> 0x3FF0000000000000
        doAnswer(inv -> {
            byte[] b = inv.getArgument(0);
            int off = inv.getArgument(1);
            b[off] = 0x3F;

 * the address in network byte order.
 *
 * <p>Examples of IP addresses and their byte representations:
 *
 * <dl>
 *   <dt>The IPv4 loopback address, {@code "127.0.0.1"}.
 *   <dd>{@code 7f 00 00 01}
 *   <dt>The IPv6 loopback address, {@code "::1"}.
 *   <dd>{@code 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01}
 *   <dt>From the IPv6 reserved documentation prefix ({@code 2001:db8::/32}), {@code "2001:db8::1"}.

none;\n}\n\n.navbar-light .navbar-brand {\n  color: rgba(0, 0, 0, 0.9);\n}\n\n.navbar-light .navbar-brand:hover, .navbar-light .navbar-brand:focus {\n  color: rgba(0, 0, 0, 0.9);\n}\n\n.navbar-light .navbar-nav .nav-link {\n  color: rgba(0, 0, 0, 0.5);\n}\n\n.navbar-light .navbar-nav .nav-link:hover, .navbar-light .navbar-nav .nav-link:focus {\n  color: rgba(0, 0, 0, 0.7);\n}\n\n.navbar-light .navbar-nav .nav-link.disabled {\n  color: rgba(0, 0, 0, 0.3);\n}\n\n.navbar-light .navbar-nav .show > .nav-link,\n.navbar-light...

 * cache instances created by {@code CacheBuilder} will not perform any type of eviction.
 *
 * <p>Usage example:
 *
 * {@snippet :
 * LoadingCache<Key, Graph> graphs = CacheBuilder.newBuilder()
 *     .maximumSize(10000)
 *     .expireAfterWrite(Duration.ofMinutes(10))
 *     .removalListener(MY_LISTENER)
 *     .build(
 *         new CacheLoader<Key, Graph>() {
 *           public Graph load(Key key) throws AnyException {

 * the address in network byte order.
 *
 * <p>Examples of IP addresses and their byte representations:
 *
 * <dl>
 *   <dt>The IPv4 loopback address, {@code "127.0.0.1"}.
 *   <dd>{@code 7f 00 00 01}
 *   <dt>The IPv6 loopback address, {@code "::1"}.
 *   <dd>{@code 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01}
 *   <dt>From the IPv6 reserved documentation prefix ({@code 2001:db8::/32}), {@code "2001:db8::1"}.

     *
     * For Win95/98/Me this is actually the last write time. It is currently
     * not possible to retrieve the create time from files on these systems.
     *
     * @return The number of milliseconds since the 00:00:00 GMT, January 1,
     *         1970 as a <code>long</code> value
     * @throws SmbException if an error occurs while retrieving the creation time
     */
    public long createTime() throws SmbException {