擅长:python、mysql、java
<blockquote>
<p>Use eval function</p>
</blockquote>
<pre><code>arr1 = [1,2,3]
arr2 = [7,8,9]
arr3 = [11,22,33]
out = []
def arrTest(arrList):
list_strs = arrList.split(',')
for list_str in list_strs:
l = eval(list_str)
out.extend(l)
arrList = "arr1,arr2,arr3"
arrTest(arrList)
print(out)
</code></pre>
<blockquote>
<p>[1, 2, 3, 7, 8, 9, 11, 22, 33]</p>
</blockquote>