擅长:python、mysql、java
<pre><code>with open("Input.txt") as inputFile:
lines = [line.strip().split() for line in inputFile]
result = {}
for k1, k2, v in lines:
result.setdefault(k1, {})[k2] = v
print result
</code></pre>
<p><strong>输出</strong></p>
<pre><code>{'A': {'Y': 'V2', 'X': 'V1'}, 'B': {'Y': 'V4', 'X': 'V3'}}
</code></pre>
<p>您可以像这样访问各个元素</p>
<pre><code>print result["A"]["Y"]
</code></pre>
<p><strong>输出</strong></p>
<pre><code>V2
</code></pre>