擅长:python、mysql、java
<p>如果可以更改数据类型,dict可能更好。您可以使用电话号码作为检索姓名的键。在</p>
<pre><code>a = {'1234':'Tom','1111':'Dick','3333':'Harry'}
b = {'1234':'Jane', '2222':'Liz','4444':'Mary'}
def minus(x, y):
{z:a[z] for z in set(x.keys()) - set(y.keys())}
# {'1111':'Dick','3333':'Harry'}
a_minus_b = minus(a, b)
# {'2222':'Liz','4444':'Mary'}
b_minus_a = minus(b, a)
</code></pre>