for (var i = 0; i < sources.length; i++) {
            var source = sources[i];
            var title = source.title || source.url || ('Source ' + (i + 1));
            var navigationUrl = sanitizeUrl(source.goUrl || source.urlLink || source.url);
            var icon = getFileTypeIcon(source.url, source.mimetype);

        document.head().
                append("<meta charset='utf-8'>").
                append("<meta name='viewport' content='width=device-width, initial-scale=1'>").
                append("<title>Gradle @version@ Release Notes</title>").
                append("<link rel='stylesheet' type='text/css' href='https://assets.gradle.com/lato/css/lato-font.css'/>");
        addCssToHead(document);
        addJavascriptToHead(document);

        Map<String, MethodInfo> classMethodCache = METHOD_CACHE.computeIfAbsent(beanType, this::buildMethodCache);

        String title = Character.toTitleCase(propertyName.charAt(0)) + propertyName.substring(1);

        // Try setter first
        MethodInfo setter = classMethodCache.get("set" + title);
        if (setter != null && isMethodCompatible(setter.method, valueType)) {
            return setter;
        }

让我们从一个简单的例子开始：

{* ../../docs_src/python_types/tutorial001_py310.py *}

运行这个程序会输出：

```
John Doe
```

这个函数做了下面这些事情：

* 接收 `first_name` 和 `last_name`。
* 通过 `title()` 将每个参数的第一个字母转换为大写。
* 用一个空格将它们<dfn title="把它们合在一起成为一个，内容一个接在另一个后面。">拼接</dfn>起来。

{* ../../docs_src/python_types/tutorial001_py310.py hl[2] *}

### 修改它 { #edit-it }

这是一个非常简单的程序。

但现在想象你要从零开始写它。

在某个时刻你开始定义函数，并且准备好了参数……

接下来你需要调用“那个把首字母变大写的方法”。

class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int = Path(title="The ID of the item to get", ge=0, le=1000),
    q: str | None = None,
    item: Item | None = None,
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})
    if item:

      },
      "labeledURI" : {
        "type" : "keyword"
      },
      "roomNumber" : {
        "type" : "keyword"
      },
      "description" : {
        "type" : "keyword"
      },
      "title" : {
        "type" : "keyword"
      },
      "pager" : {
        "type" : "keyword"
      },
      "street" : {
        "type" : "keyword"
      },
      "postalCode" : {
        "type" : "keyword"

  var contextPath = $("#contextPath").val();
  var BUTTON_DISABLE_DURATION = 3000;

  var SUGGESTOR_CONFIG = {
    ajaxinfo: {
      url: contextPath + "/api/v1/suggest-words",
      fn: ["_default", "content", "title"],
      num: 10,
      lang: $("#langSearchOption").val()
    },
    boxCssInfo: {
      border: "1px solid rgba(82, 168, 236, 0.5)",

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/users/me": {
                    "get": {
                        "responses": {
                            "200": {

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/users/me": {
                    "get": {
                        "responses": {
                            "200": {

# This CITATION.cff file was generated with cffinit.
# Visit https://bit.ly/cffinit to generate yours today!

cff-version: 1.2.0
title: FastAPI
message: >-
  If you use this software, please cite it using the
  metadata from this file.
type: software
authors:
  - given-names: Sebastián
    family-names: Ramírez
    email: ******@****.***
identifiers:
repository-code: 'https://github.com/fastapi/fastapi'