WSDL is an XML-based language for describing Web services and how to access them.
WSDL是一種基于XML的語(yǔ)言。它的作用是描述和訪(fǎng)問(wèn)網(wǎng)頁(yè)服務(wù)。

Before you continue you should have a basic understanding of the following:
在你繼續(xù)下面的學(xué)習(xí)之前你應(yīng)該對(duì)以下內(nèi)容有個(gè)基本認(rèn)識(shí)：

• XML
• XML Namespaces
  XML命名空間
• XML Schema
  格式
  

If you want to study these subjects first, find the tutorials on our Home page.
如果你想先學(xué)習(xí)這些內(nèi)容，請(qǐng)看我們主頁(yè)上的教程。

• WSDL stands for Web Services Description Language
  • WSDL是網(wǎng)頁(yè)服務(wù)描述語(yǔ)言 （Web Services Description Language）的縮寫(xiě)
• WSDL is written in XML
  • WSDL是以XML形式寫(xiě)成的。
• WSDL is an XML document
  • WSDL是一份XML文檔
• WSDL is used to describe Web services
  • WSDL用于描述網(wǎng)頁(yè)服務(wù)
• WSDL is also used to locate Web services
  • WSDL也用于給網(wǎng)頁(yè)服務(wù)定位
• WSDL is not yet a W3C standard
  • WSDL目前還不是W3C標(biāo)準(zhǔn)

WSDL stands for Web Services Description Language.
• WSDL是網(wǎng)頁(yè)服務(wù)描述語(yǔ)言 （Web Services Description Language）的縮寫(xiě)

WSDL is a document written in XML. The document describes a Web service. It specifies the location of the service and the operations (or methods) the service exposes.
WSDL是以XML語(yǔ)言寫(xiě)成的文檔。文檔描述了網(wǎng)頁(yè)服務(wù)。它指定了服務(wù)的位置并揭示了服務(wù)的具體操作。

WSDL 1.1 was submitted as a W3C Note by Ariba, IBM and Microsoft for describing services for the W3C XML Activity on XML Protocols in March 2001.
2001年3月，Ariba, IBM 和 Microsoft提交WSDL 1.1作為一個(gè)W3C Note（注釋?zhuān)?，用于為XML協(xié)議上的W3C XML Activity描述服務(wù)。

(a W3C Note is made available by the W3C for discussion only. Publication of a Note by W3C indicates no endorsement by W3C or the W3C Team, or any W3C Members)
（一份W3C注釋是W3C提供的僅供討論的內(nèi)容。W3C發(fā)行的注釋并不代表注釋經(jīng)過(guò)W3C或W3C工作組，或任何W3C成員的認(rèn)可和肯定）。

The first Working Draft of WSDL 1.2 was released by W3C in July 2002.
WSDL 1.2的首篇工作草案于2002年7月由W3C發(fā)行。