擅长:python、mysql、java
<p>命令行参数之间缺少逗号(<code>,</code>)s:</p>
<pre><code>cmd = ["zenity", " question", " text='Are you " + str(nmaj) + "years old ?'"]
</code></pre>
<p>否则,字符串文本将连接成一个字符串(请参见<a href="https://docs.python.org/3/reference/lexical_analysis.html#string-literal-concatenation" rel="nofollow">String literal concatenation</a>):</p>
^{pr2}$