擅长:python、mysql、java
<p>你很亲密:-)</p>
<p>更改此项:</p>
<pre><code> angle = atan(float(dy)/float(dx))
</code></pre>
<p>为此:</p>
^{pr2}$
<p>因为函数<eem()和<eem()之间的符号是循环的</p>
<pre><code>atan2(...)
atan2(y, x)
Return the arc tangent (measured in radians) of y/x.
Unlike atan(y/x), the signs of both x and y are considered
</code></pre>
<p><em>degrees()</em>函数将弧度转换为度:</p>
<pre><code>degrees(...)
degrees(x)
Convert angle x from radians to degrees.
</code></pre>
<p>而且,正如Rich和Cody指出的,你需要修正你的<em>dy</em>计算。在</p>