擅长:python、mysql、java
<p>这是一种在对象的查找表中搜索成员的脆弱方法<a href="https://docs.python.org/2/library/functions.html#getattr" rel="nofollow noreferrer">^{<cd1>}</a>仅用于此用例。示例如下:</p>
<pre><code>class MyClass(object):
def __init__(self):
self.x = 'foo'
self.y = 'bar'
myClass = MyClass()
try:
print(getattr(myClass, 'x'))
print(getattr(myClass, 'y'))
print(getattr(myClass, 'z'))
except AttributeError:
print 'Attribute not found.'
</code></pre>
<p><strong>样本输出:</strong></p>
<pre><code>foo
bar
Attribute not found.
</code></pre>