<p>假设message=1,联系文件中的A,我想打印</p>
<pre><code>1 A
2 B
3 C
4 D
for message in peoplename:
for contact in contacts_list:
time.sleep(10)
print (message, contact)
</code></pre>
<p>但它是这样印刷的</p>
<pre><code>1 A
1 B
1 C
1 D
2 A
2 B
2 C
2 D
3 A
3 B
3 C
3 D
4 A
4 B
4 C
4 D
</code></pre>
<p>请告诉我怎么修</p>
<p>您可以迭代列表的长度</p>
<pre><code>length = len(peoplename)
if legnth != len(contacts_list):
raise ValueError("Lists have different lengths")
for i in range(length):
time.sleep(10)
print (peoplename[i], contact_list[i])
</code></pre>