Contents

• 查找两个字典的相同点

  • 字典构造一个排除几个指定键的新字典

20.1.8. 查找两个字典的相同点

#!/usr/bin/env python
# -*- coding:utf8 -*-
# auther; 18793
# Date：2019/7/28 19:23
# filename: 08.查找两个字典的相同点.py
a = {
    "x": 1,
    "y": 2,
    "z": 3
}

b = {
    "w": 10,
    "x": 11,
    "y": 2

}

print(a.keys() & b.keys())
print(a.keys() - b.keys())
print(a.items() & b.items())

输出信息

{'x', 'y'}
{'z'}
{('y', 2)}

字典构造一个排除几个指定键的新字典

c = {key: a[key] for key in a.keys() - {"z", "w"}}
print(c)

输出信息

{'x': 1, 'y': 2}