擅长:python、mysql、java
<p>您可以将RGB元组转换为十六进制字符串<a href="https://stackoverflow.com/questions/3380726/converting-a-rgb-color-tuple-to-a-six-digit-code-in-python/3380739#3380739">as showb here</a>:</p>
<pre><code>...
for country, date, case in zip(countries, dateList, casesList):
r, g, b = (int(255*x) for x in np.random.rand(3,))
hexa = "#%02x%02x%02x" %(r, g, b)
ax.scatter(date, case, c=hexa, edgecolors='none', label=country)
...
</code></pre>