=&nbsp;%i"</span>&nbsp;f</code> returns <code class="code">2</code>.</p>

<p>Arguments <code class="code">r1</code> to <code class="code">rN</code> are user-defined input functions that read the
    argument corresponding to the <code class="code">%r</code> conversions specified in the format
    string.</p>
<h2 id="1_Formatstringdescription">Format string description</h2><p>The format string is a character string which contains three types of
    objects:</p>
<ul>
<li>plain characters, which are simply mat