demo

= = 25

<span style="color: #0000ff;"&gt;def</span><span style="color: #000000;"&gt; say(self):
    </span><span style="color: #0000ff;"&gt;print</span> <span style="color: #800000;"&gt;'</span><span style="color: #800000;"&gt;My name is </span><span style="color: #800000;"&gt;'</span> + self.name + <span style="color: #800000;"&gt;'</span><span style="color: #800000;"&gt;,and age is </span><span style="color: #800000;"&gt;'</span> +<span style="color: #000000;"&gt; str(self.age)

p =<span style="color: #000000;"> Person()
p.say()
<span style="color: #0000ff;">print p.name