擅长:python、mysql、java
<p>在你的情况下,人口指数永远不会比人口指数更高,这就是为什么你不会打印一些东西</p>
<p>如果您想解决问题,可以尝试:</p>
<pre><code>population_a = 1.37
population_b = 1.26
growing_rate_a = 0.0051
growing_rate_b = 0.0135
year = 2014
while population_a > population_b:
year += 1
population_b += population_b * growing_rate_b
population_a += population_a * growing_rate_a
print(year)
</code></pre>