擅长:python、mysql、java
<p>有两个选项,您可以使用<code>nested list</code>结构或<code>dictionary</code>。你知道吗</p>
<p><strong>嵌套列表:</strong></p>
<pre><code>parent_list = [['bob', 'jack', 'adam', 'dom'], ["alpha", "beta", "gamma"], ["India", "USA"]]
num = int(input('Please select a number? '))
#Checking if the value entered can be accessed or not.
if num<3:
for name in parent_list[num]:
print name
else:
print "Please enter a number between 0-2"
</code></pre>
<p><strong>词典:</strong></p>
<pre><code>parent_dict = {0:['bob', 'jack', 'adam', 'dom'], 1:["alpha", "beta", "gamma"], 2:["India", "USA"]}
num = int(input('Please select a number? '))
if num<3:
for name in parent_dict[num]:
print name
else:
print "Please enter a number between 0-2"
</code></pre>
<p>如果已经在脚本中创建了变量,则可以选择创建字典或变量嵌套列表:</p>
<pre><code>names1 = ['bob', 'jack', 'adam', 'dom' ]
names2 = ["alpha", "beta", "gamma"]
names3 = ["India", "USA"]
#For nested list part
parent_list = [names1, names2, names3]
#For dictionary part
parent_dict = {0:names1, 1:names2, 2:nmaes3}
</code></pre>