更新:2007 年 11 月
下面的示例提供对某个已存档的类型的基本概述。
示例
| C# | |
|---|---|
// compile with: /doc:DocFileName.xml /// <summary> /// Class level summary documentation goes here.</summary> /// <remarks> /// Longer comments can be associated with a type or member /// through the remarks tag</remarks> public class TestClass { /// <summary> /// Store for the name property</summary> private string _name = null; /// <summary> /// The class constructor. </summary> public TestClass() { // TODO: Add Constructor Logic here } /// <summary> /// Name property </summary> /// <value> /// A value tag is used to describe the property value</value> public string Name { get { if (_name == null) { throw new System.Exception("Name is null"); } return _name; } } /// <summary> /// Description for SomeMethod.</summary> /// <param name="s"> Parameter description for s goes here</param> /// <seealso cref="System.String"> /// You can use the cref attribute on any tag to reference a type or member /// and the compiler will check that the reference exists. </seealso> public void SomeMethod(string s) { } /// <summary> /// Some other method. </summary> /// <returns> /// Return results are described through the returns tag.</returns> /// <seealso cref="SomeMethod(string)"> /// Notice the use of the cref attribute to reference a specific method </seealso> public int SomeOtherMethod() { return 0; } /// <summary> /// The entry point for the application. /// </summary> /// <param name="args"> A list of command line arguments</param> static int Main(System.String[] args) { // TODO: Add code to start application here return 0; } } | |
// This .xml file was generated with the previous code sample.
<?xml version="1.0"?>
<doc>
<assembly>
<name>xmlsample</name>
</assembly>
<members>
<member name="T:SomeClass">
<summary>
Class level summary documentation goes here.</summary>
<remarks>
Longer comments can be associated with a type or member
through the remarks tag</remarks>
</member>
<member name="F:SomeClass.m_Name">
<summary>
Store for the name property</summary>
</member>
<member name="M:SomeClass.#ctor">
<summary>The class constructor.</summary>
</member>
<member name="M:SomeClass.SomeMethod(System.String)">
<summary>
Description for SomeMethod.</summary>
<param name="s"> Parameter description for s goes here</param>
<seealso cref="T:System.String">
You can use the cref attribute on any tag to reference a type or member
and the compiler will check that the reference exists. </seealso>
</member>
<member name="M:SomeClass.SomeOtherMethod">
<summary>
Some other method. </summary>
<returns>
Return results are described through the returns tag.</returns>
<seealso cref="M:SomeClass.SomeMethod(System.String)">
Notice the use of the cref attribute to reference a specific method </seealso>
</member>
<member name="M:SomeClass.Main(System.String[])">
<summary>
The entry point for the application.
</summary>
<param name="args"> A list of command line arguments</param>
</member>
<member name="P:SomeClass.Name">
<summary>
Name property </summary>
<value>
A value tag is used to describe the property value</value>
</member>
</members>
</doc> | |
编译代码
若要编译该示例,请键入以下命令行:
csc XMLsample.cs /doc:XMLsample.xml
这将创建 XML 文件 XMLsample.xml,您可以在浏览器中或使用 TYPE 命令查看该文件。
可靠编程
XML 文档以 /// 开头。创建新项目时,向导将为您放入一些起始 /// 行。对这些注释的处理有一些限制:
文档必须是格式良好的 XML。如果 XML 格式不良,将生成警告,并且文档文件将包含一条注释,指出遇到错误。
开发人员可自由创建自己的标记集。有一套建议的标记(请参见“其他阅读材料”部分)。某些建议的标记具有特殊含义:
<param> 标记用于描述参数。如果使用,编译器将验证参数是否存在,以及文档中是否描述了所有参数。如果验证失败,则编译器发出警告。
cref 属性可以附加到任意标记,以提供对代码元素的引用。编译器将验证该代码元素是否存在。如果验证失败,则编译器发出警告。编译器在查找 cref 属性中描述的类型时,会考虑所有的 using 语句。
<summary> 标记由 Visual Studio 内的“Intellisense”使用,用来显示类型或成员的其他相关信息。
说明:XML 文件并不提供有关类型和成员的完整信息(例如,它不包含任何类型信息)。若要获得有关类型或成员的完整信息,文档文件必须与实际类型或成员上的反射一起使用。