<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" type="topic" style="task" id="debug-expression" xml:lang="zh-CN">

  <info xmlns:facet="http://projectmallard.org/facet/1.0/">
    <facet:tag key="all-pages" value="whatever"/> <!--Include page in index-->
    <link type="guide" xref="debug-data" group="first"/>
    <revision pkgversion="3.0" version="0.1" date="2011-03-27" status="incomplete"/>
    <desc>
      Evaluate expressions and modify variables.
    </desc>
    <credit type="author">
      <name>Sébastien Granjoux</name>
      <email>seb.sfo@free.fr</email>
    </credit>
    <credit type="editor">
      <name>Philip Chimento</name>
      <email>philip.chimento@gmail.com</email>
    </credit>
  </info>

  <title>Examine expressions</title>

  <section>
    <title>Inspect an expression and modify a variable</title>

	<p>While you are debugging a program, you can find out the value
	of an expression or variable while the program is paused.
	It is also sometimes useful to change the value of a variable.</p>

    <steps>
      <item>
        <p>From the <gui>main menu</gui>, select <guiseq><gui>Debug</gui>
        <gui>Inspect/Evaluate...</gui></guiseq> or right click in the
        <gui>Editor</gui> window and select <gui>Inspect/Evaluate...</gui>.</p>
      </item>
      <item>
        <p>If the expression is a variable name, you can change its value
        by clicking on the <gui>Value</gui> column and entering a new value.</p>
      </item>
    </steps>

  </section>

</page>
