擅长:python、mysql、java
<pre><code>arr1 = [1,2,3]
arr2 = [7,8,9]
arr3 = [11,22,33]
the_list = []
arrList = "arr1,arr2,arr3"
for array in arrList.split(','):
if array in locals():
the_list.extend(locals()[array])
print (the_list)
</code></pre>
<p>输出</p>
<pre><code>[1, 2, 3, 7, 8, 9, 11, 22, 33]
</code></pre>
<p><code>locals()</code>函数返回包含在本地命名空间中定义的变量的字典。你知道吗</p>